Weistec ECU Tuning

ECU is short for "Electronic Control Unit

ECU Tuning, also called Chip Tuning is a method of updating the electronic control units chip with higher performing software. Updating the ECU chips programming can raise horsepower, timing, fuel injection, electronic throttle control and valve timing. In the old days you could only update the ECU Chip by reprogramming it with a OBDII and that it is still done that way today in some cases. But today, you also have the option to unplug the old Electronic Control Unit and plug in a new pre-programmed ECU. Vivid Racing carries the largest variety of Plug N Play engine management control units. We have ECU units for almost every make and model that uses Electronic Control Unit modules. Some models do require you to update the programming through software which can be done with most home pc or laptops.

Tuning your vehicle doesn't end with a new Electronic Control Unit. A great combination of Engine components, Air Intakes, and Exhausts will help your car perform at it best. Vivid Racing carries all of these components. Check it out.

Buy online or give one of our world class sales professionals a call at 1-480-966-3040. If you don't see what you are looking for Call Us. We can help. Vivid Racing was voted #1 in customer service nationwide!

Hands-On Experience and Professionalism is what makes us the best!

In-House Facility

Vivid Racing has one of the most comprehensive tuning facilities in the Southwestern USA. We have tuned everything from street cars, race cars, trucks, and more. With our Mustang AWD Dyno, we get accurate before and after tests results showing the gain our tuning department can give you. Qualified and specialized in such tuning tools as the UTEC, Ecutek, Cobb Accessport, AEM, VR Tuned, Link Electro, Hydra, ApexI, Greddy, OCT Tuning, and many more. We have even an indepth capability to tune your diesel car or truck.

Vivid Racing carries a wide variety of Electronic Control Units for cars and trucks. We sell Electronic Control Units from:

Active Autowerks, Burger Motorsports, RD Sport ECU's, Edge, Novitec, AEM Electronics, ApexI, Cobb Tuning, Carlsson, Evosport, Kleemann, EVOMS, VR Tuned, HKS, Cosworth, ECUTEK, TurboXS, and more.

Learn more about ECU Tuning and Chip Tuning Here.  Check out our Tuning Program by CLICKING HERE.

LOOKING FOR OEM PARTS? We can help.
Are you tired of paying overly inflated prices that the dealers charge for their parts? Vivid Racing can save you up to 60% off the dealers prices. Click here to visit our OEM PARTS STORE.

Based out of Orange County California, Weistec Engineering is an industry leader in research, development, and design. Weistec has grown to provide customers with the highest level of satisfaction and value through relentless testing and continuous improvements in product and performance.

Specializing in computer aided design, and vehicle calibration, Weistec has the ability to manufacture quality products that are able to withstand even the most rigorous testing. From OEM vehicle manufacturers to the aftermarket performance enthusiast we aim to deliver innovative solutions that address a client’s needs.

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	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz C63 AMG 08-14  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz CLK63 AMG 07-08  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz CLS63 AMG 07-14  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz E63 AMG 07-14  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz S63 AMG 07-14  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz ML63 AMG 07-14  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz CL63 AMG 08-14  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.9 Valve Body | TCU Upgrade Mercedes Benz SL63 AMG 09-14  Model Number: 01-229-00221-9   View Price Weistec Engineering is proud to present the first and only valve body upgrade for 722.9 7 speed transmission used in many AMG and non-AMG models. When Weistec receives your valve body, it is modified using their proprietary techniques to increase line pressure and improve shifting characteristics. Next they make changes to the TCU electronics to compliment the physical modifications. Once complete, the valve body is bench tested and packaged with all necessary parts to make a clean and easy inst...
	Weistec 722.6 TCU Upgrade Mercedes Benz CL55 AMG 02-04  Model Number: 01-226-00500-6   View Price The 5 speed 722.6 Transmission stands to deliver significant gains with the Weistec 722.6 TCU Upgrade. Improved shift points, faster shifting and torque management will not only increase your vehicles performance, but it will also help prevent slipping in the transmission which causes excessive wear and tear.Features:Optimized Shift PointsIncreased Shift SpeedsImproved Torque ManagementPrevents Transmission SlipFitment: Mercedes Benz CL55 AMG 02-04...
	Weistec 722.6 TCU Upgrade Mercedes Benz S55 AMG 02-06  Model Number: 01-226-00500-6   View Price The 5 speed 722.6 Transmission stands to deliver significant gains with the Weistec 722.6 TCU Upgrade. Improved shift points, faster shifting and torque management will not only increase your vehicles performance, but it will also help prevent slipping in the transmission which causes excessive wear and tear.Features:Optimized Shift PointsIncreased Shift SpeedsImproved Torque ManagementPrevents Transmission SlipFitment: Mercedes Benz S55 AMG 02-06...
	Weistec 722.6 TCU Upgrade Mercedes Benz SL55 AMG 02-08  Model Number: 01-226-00500-6   View Price The 5 speed 722.6 Transmission stands to deliver significant gains with the Weistec 722.6 TCU Upgrade. Improved shift points, faster shifting and torque management will not only increase your vehicles performance, but it will also help prevent slipping in the transmission which causes excessive wear and tear.Features:Optimized Shift PointsIncreased Shift SpeedsImproved Torque ManagementPrevents Transmission SlipFitment: Mercedes Benz SL55 AMG 02-08...
	Weistec 722.6 TCU Upgrade Mercedes Benz E55 AMG 03-06  Model Number: 01-226-00500-6   View Price The 5 speed 722.6 Transmission stands to deliver significant gains with the Weistec 722.6 TCU Upgrade. Improved shift points, faster shifting and torque management will not only increase your vehicles performance, but it will also help prevent slipping in the transmission which causes excessive wear and tear.Features:Optimized Shift PointsIncreased Shift SpeedsImproved Torque ManagementPrevents Transmission SlipFitment: Mercedes Benz E55 AMG 03-06...
	Weistec 722.6 TCU Upgrade Mercedes Benz G55 AMG 04-09  Model Number: 01-226-00500-6   View Price The 5 speed 722.6 Transmission stands to deliver significant gains with the Weistec 722.6 TCU Upgrade. Improved shift points, faster shifting and torque management will not only increase your vehicles performance, but it will also help prevent slipping in the transmission which causes excessive wear and tear.Features:Optimized Shift PointsIncreased Shift SpeedsImproved Torque ManagementPrevents Transmission SlipFitment: Mercedes Benz G55 AMG 04-09...
	Weistec 722.6 TCU Upgrade Mercedes Benz CLS55 AMG 2006  Model Number: 01-226-00500-6   View Price The 5 speed 722.6 Transmission stands to deliver significant gains with the Weistec 722.6 TCU Upgrade. Improved shift points, faster shifting and torque management will not only increase your vehicles performance, but it will also help prevent slipping in the transmission which causes excessive wear and tear.Features:Optimized Shift PointsIncreased Shift SpeedsImproved Torque ManagementPrevents Transmission SlipFitment: Mercedes Benz CLS55 AMG 2006...
	Weistec M156 ECU Upgrade Mercedes Benz C63 AMG 08-14  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M156 ECU Upgrade Mercedes Benz CLK63 AMG 07-08  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M156 ECU Upgrade Mercedes Benz CLS63 AMG 07-10  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M156 ECU Upgrade Mercedes Benz E63 AMG 07-11  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M156 ECU Upgrade Mercedes Benz S63 AMG 07-10  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M156 ECU Upgrade Mercedes Benz ML63 AMG 07-11  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M156 ECU Upgrade Mercedes Benz CL63 AMG 08-10  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M156 ECU Upgrade Mercedes Benz SL63 AMG 09-11  Model Number: 01-000-00169-7   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.They have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercha...
	Weistec M159 ECU Upgrade Mercedes Benz SLS AMG 10-14  Model Number: 01-159-00367-2   View Price As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the SLS AMG. Weistec's ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules.Weistec has created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to their Supercharger System. With a keen understand...
	Weistec M159 TCU Upgrade Mercedes Benz SLS AMG 10-14  Model Number: 01-159-00881-3   View Price The Weistec Engineering SLS TCU Upgrade for the SLS, SLS Roadster, and SLS GT will match your transmission's performance to that of the SLS Black Series. Shifting up and down in gears will be quicker and firmer. The improved shifting also allows for greater torque capacity which is ideal for modified vehicles that make significantly more power than stock.Features:Faster Up Shifting and Down ShiftingImproved DrivabilityIncreased Torque CapacityFitment: Mercedes Benz SLS AMG 10-14...
	Weistec M159 ECU Upgrade Mercedes Benz SLS AMG Black Series 2014  Model Number: 01-159-00367-2   View Price When it comes to upgrading the 6.2L M159 engine that powers the SLS Black Series, no one does it better than Weistec Engineering. Weistec's SLS Black Series ECU upgrade provides peak gains of nearly 30hp at the wheels as well as improving the engine's long power band on an otherwise stock car.When Weistec's SLS Black Series ECU upgrade is paired with long tube headers, peak gains are nearly 80hp at the wheels with substantial gains throughout the entire power band and improved throttle ...
	Weistec M157 ECU Upgrade Mercedes Benz CLS63 AMG 12-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M157 ECU Upgrade Mercedes Benz E63 AMG 12-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M157 ECU Upgrade Mercedes Benz S63 AMG 12-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M157 ECU Upgrade Mercedes Benz CL63 AMG 12-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M157 ECU Upgrade Mercedes Benz ML63 AMG 12-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M157 ECU Upgrade Mercedes Benz GL63 AMG 13-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M157 ECU Upgrade Mercedes Benz SL63 AMG 13-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M157 ECU Upgrade Mercedes Benz G63 AMG 13-14  Model Number: 01-157-00252-3   View Price As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi-turbo M157 vehicle lineup. After months of painstaking dyno and road tuning, they are proud to introduce the most powerful ECU upgrade ever released for the M157 engine. Fully developed in house, Weistec's ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications.After converting the naturally aspirated M156 mo...
	Weistec M113K ECU Upgrade Mercedes Benz CL55 AMG 02-04  Model Number: 01-113-00400-0   View Price As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for M113K, stock Mercedes Kompressor powered vehicles. Weistec offers calibrations to match the modifications to your vehicle, from otherwise stock, to heavily modified.Power gains range from 20 to 70 HP depending on level of modification. Features:+20-70whp+70-120wtqEliminate Top Speed LimiterIncreased Throttle ResponseOptimized Fuel and SparkFitment: Mercedes Benz CL55 AMG 02-04...
	Weistec M113K ECU Upgrade Mercedes Benz S55 AMG 02-06  Model Number: 01-113-00400-0   View Price As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for M113K, stock Mercedes Kompressor powered vehicles. Weistec offers calibrations to match the modifications to your vehicle, from otherwise stock, to heavily modified.Power gains range from 20 to 70 HP depending on level of modification. Features:+20-70whp+70-120wtqEliminate Top Speed LimiterIncreased Throttle ResponseOptimized Fuel and SparkFitment: Mercedes Benz S55 AMG 02-06...
	Weistec M113K ECU Upgrade Mercedes Benz SL55 AMG 02-08  Model Number: 01-113-00400-0   View Price As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for M113K, stock Mercedes Kompressor powered vehicles. Weistec offers calibrations to match the modifications to your vehicle, from otherwise stock, to heavily modified.Power gains range from 20 to 70 HP depending on level of modification. Features:+20-70whp+70-120wtqEliminate Top Speed LimiterIncreased Throttle ResponseOptimized Fuel and SparkFitment: Mercedes Benz SL55 AMG 02-08...
	Weistec M113K ECU Upgrade Mercedes Benz E55 AMG 03-06  Model Number: 01-113-00400-0   View Price As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for M113K, stock Mercedes Kompressor powered vehicles. Weistec offers calibrations to match the modifications to your vehicle, from otherwise stock, to heavily modified.Power gains range from 20 to 70 HP depending on level of modification. Features:+20-70whp+70-120wtqEliminate Top Speed LimiterIncreased Throttle ResponseOptimized Fuel and SparkFitment: Mercedes Benz E55 AMG 03-06...
	Weistec M113K ECU Upgrade Mercedes Benz G55 AMG 04-09  Model Number: 01-113-00400-0   View Price As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for M113K, stock Mercedes Kompressor powered vehicles. Weistec offers calibrations to match the modifications to your vehicle, from otherwise stock, to heavily modified.Power gains range from 20 to 70 HP depending on level of modification. Features:+20-70whp+70-120wtqEliminate Top Speed LimiterIncreased Throttle ResponseOptimized Fuel and SparkFitment: Mercedes Benz G55 AMG 04-09...
	Weistec M113K ECU Upgrade Mercedes Benz CLS55 AMG 2006  Model Number: 01-113-00400-0   View Price As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for M113K, stock Mercedes Kompressor powered vehicles. Weistec offers calibrations to match the modifications to your vehicle, from otherwise stock, to heavily modified.Power gains range from 20 to 70 HP depending on level of modification. Features:+20-70whp+70-120wtqEliminate Top Speed LimiterIncreased Throttle ResponseOptimized Fuel and SparkFitment: Mercedes Benz CLS55 AMG 2006...