We just finished an Agency Power 590 Turbo Kit build on a Porsche 996TT. Read more about the product here – https://www.vividracing.com/catalog/a…5-p-45781.html
The car features the following modifications –
- K24/18G Turbos
- Tial 44mm External Wastegates
- Agency Power Exhaust
- Agency Power Headers Modified for Wastegates
- Agency Power Boost Hoses
- Agency Power F Hose
- Agency Power Cold Air Intake
- Forge Diverter Valves
- VRTuned ECU Tuning
- 5Bar Fuel Pressure Regulator
- Greddy Profec B2 Boost Controller
Running the car at 1.2 or 1.3bar would be safer with 100+ octane. The K24/18G does feel a little laggy on the bottom compared to our Garrett Turbos on the 650+ kit. The top end definitely pulls strong. On our Mustang Dyno, the car made a respectable 500whp at 1.25bar and really strong torque. The Tial 44mm external wastegates are definitely the reason the torque climbed. Bypassing the exhaust system allows for the exhaust gases to be released without affecting the turbine. The car is very comfortable for daily driving and really roars once the wastegates open. The Greddy Profec offers the ability to change boost levels on the fly for street or track.
How does it compare to our 650+ kit? The Garretts definitely make more power and are capable of even more. They spool a bit earlier give that hard hitting torque faster. Adding some 60lb injectors and the 650 kit can be come a 700 kit. Not sure what the capacity of the K24/18G is. The upgraded headers, oil cans, water lines, oil lines, etc do add some nice features compared to the 590. As far as price goes, if you have the K24 turbos already, the upgrade is very cheap. Adding the external wastegates is not necessary, but adds some flavor with performance. If you don’t have the K24 turbos and have to start from scratch, an extra $1500ish will bump you to the 650 kit. All said and done, the car turned out well!
All pictures of the car can be seen here –
https://www.vividracing.com/forums/ga…ages.php?c=272
YouTube Video Here – https://www.youtube.com/v/pFCWn6cP25Q
