We just received this set of HRE C20 3pc racing wheels in gunmetal for a Porsche 997 C4S customer.  The wheels are a 19×8.5 inch front and a 19×11 inch rear.  The C Series wheel is quite the engineering marvel.  These centers weigh only about 7-8lbs each which make the entire wheel weigh without tires about 18lbs.  Very strong and very light, the HRE C Series is a top choice for those wanting a good track wheel that is fashionable.  Each HRE C Series wheel is custom made to your vehicle and specific offsets.  These offsets are determined by vehicle model, brake caliper, ride height, and vehicle use.

These wheels which feature a Step Lip were wrapped in Toyo T1R Tires.  The front is a 245/35/19 and the rear is a 315/25/19.  This tire is an excellent aggressive street tire which is comparable to that of a Michelin Pilot Sport PS2.  The tire features a refined tread design and construction that offers improved dry and wet handling and performance.  The T1R tire we chose is a “Y” rating for higher speed and performing cars such as the Porsche 997.

Check out all the HRE C Series Wheels Vivid Racing sells here.

View all our Toyo Tires we carry including the T1R and R888 here.

One of the most important upgrades for the Porsche 996 Turbo is to replace the factory Bosch diverter valves. The factory valves are prone to leaking pressure under increased boost when the car has an upgraded ECU flash. As well, the factory Bosch valves will taper boost off with the diaphragm design even at stock boost levels. To help keep the boost pressure constant all the way to redline, upgrading the stock diverter valves to the Agency Power Racing Diverter Valve Kit will improve your cars overall performance.

These valves are CNC machined 6061 aluminum which have been precision engineered to fit with the stock or aftermarket F-Hose and intake return hoses. The internal construction of the valve uses a machined piston with proper o-rings to ensure a smooth motion that is air tight to prevent any boost leaks. The spring has been engineered to hold moderate to aggressive boost increases on the 996TT vehicles. The valves feature a 90 degree removable swivel connection for easy fitting with the factory vacuum hose. If needed, the top of the valve unscrews allowing you to re-greased and service the valve. Valves are available in a polished finish and feature the Agency Power text and logo laser engraved on the top. As tested, these valves are a great upgrade for stock K16 or K24 cars and have even been used in our 700HP turbo kits. Valves are sold as a pair for the 2001-2005 Porsche 996 Turbo.

View the new Agency Power Diverter Valves for the Porsche 996TT Here.

The TPC Racing supercharger kit now available for the 2005+ Porsche 997 Carrera or Carrera S. This kit includes everything needed for installation including the piggyback ECU upgrade, intake, supercharger, intercooler, and all hardware and fittings. This kit is very reliable, safe, and daily driveable for everyday use.

View the TPC Porsche 997 Supercharger Kit Here.

Why a positive displacement supercharger?
Power, Reliability, and Easy Maintenance have made the Positive Displacement Superchargers the primary choice of every OEM manufacturer producing supercharged vehicles from Mercedes to Ford. A positive displacement supercharger provides lag-free performance at lower boost without the need for internal engine modifications. The end result, an affordable, reliable, high-yield, performance upgrade available for those seeking high-performance and every-day driveability.

Why share Oil?
Unlike the cheaper centrifugal style superchargers, the Positive Displacement Superchargers are completely self-contained and have their own synthetic oil supply. The TPC 997 Supercharger Kit features a bolt-on design which does not require internal engine or major chassis modifications. The 997 Supercharger Kit also includes a large liquid-to-air intercooler to keep your charge air temperatures cool in the relentless summer heat.

Read the Modified L&E Article on the TPC Supercharger

Vivid Racing recently had the opportunity to work on this 2006 Porsche 997 C4S. The car is a great machine in its stock state. The 3.8L engine pulls well but even with the Sport Button it could use some more POWA!!!

So we added the Agency Power Exhaust System to the car.  The exhaust is all stainless steel and TIG welded.  It is designed to give maximum performance and minimal drone on cruising speeds.  The exhaust is all polished to a mirror look.  When installing this exhaust, you can retain the factory tips and use the stock or aftermarket headers.  The exhaust system helps reduce back pressure to the point of gaining mid to top end power.  You will notice right away the car pulling harder from mid RPM till the top.

Now to help out the cars overall performance, we upgraded the ECU with the Softronic ECU Flash.  As one of the main resellers for Softronic, we always jump on the opportunity to have a car inhouse to prove the capabilities on our Mustang All Wheel Drive dyno.  The ECU flash is a very simple process that takes about 15 minutes to do the ECU read and then about 20-30 minutes to load the new file.  The best part about Softronic is the ability to retain the stock map if you ever need to flash back to it.  Vivid Racing has a very indepth instruction manual on how to Flash the car HERE.

The baseline test of our car with the exhaust shows the Porsche 997 C4S making 280awhp and 230ft/lbs of torque.  With the car in sport mode, we made 290awhp and 244ft/lbs of torque.  Without sport mode the car made 293awhp and 243ft/lbs of torque.  The car will always make more torque and low end horsepower as the dyno graph shows because of how the sport feature works.  It gives much faster throttle response and immediate power.  With outside air temperatures at around 110F degrees and the dyno room temperatures at 105F degrees average, it is hard to really get a strong run.  If the air temperature was around 70F degrees, this car would pick up another 10HP guaranteed.  The Mustang Dyno does read much lower then others such as a DynoJet and a DynaPak.  Those generally add on 40HP more.  But with a 20-25% drivetrain loss that is expected on the Mustang Dyno, these numbers are pretty good.  Overall the Softronic ECU flash on the Porsche 3.8L made 13 peak all wheel horsepower and 13ft/lbs of torque.

You can view the HOW TO YouTube.com Video on the ECU Flash Here -

http://www.youtube.com/watch?v=Pl3FkzruqNU

View the Agency Power Exhaust Video Here -

http://www.youtube.com/watch?v=pF2i0LzTm9w

View the rest of the install gallery here - http://www.vividracing.com/forums/gallery/browseimages.php?c=354

One of our customers recently received there K24/18G Turbo Kit from us and took some photos from his install. The 650HP turbo setup includes 1.0bar actuators and has been quoted as “Dangerously Fast”! The Softronic ECU Flash was done with the provided client cable from his house. These turbos have huge mid to top end horsepower. Check out the install pics of Sid’s Porsche 996TT here - http://www.vividracing.com/forums/gallery/browseimages.php?c=350