08/25/2026
Before loading up for Gridlife Lime Rock last Tuesday I decided to throw our FL5 on the dyno to actually fully retune it for the stock turbo.
I Didn't think there would be much left it it, but I was wrong π€£. I was able to safely find another 20whp peak, with gains as much as 30 in the midrange. Final power sits at 387 Wheel horsepower and 402 Ft Lbs of Torque.
The car has been big turbo for the last year and a half, but for the past couple of months it was been back on the stock turbo for racing class purposes. For the time being we have just been running the last stock turbo tune that I did on the car in late 2024.
I wish I would have put it back on the Dyno to retune sooner as this would have yielded noticably better lap times!
If youd like a Custom tune for your FK8/DE5/FK8, just give me a shout!
- COBB Tuning Accessport V3
- JST-Performance Custom tune, 93 Octane
- Cobb Tuning Carbon intake, intercooler, charge pipes
- RV6 Performance Downpipe, Front pipe
- Hybrid Racing Formula Exhaust system
www.jst-performance.com
