Had another successful customer reflash his Porsche 997 C4s with our iFlash OBDII tool here. The flash which takes about 5 minutes to read and 5 minutes to write is a huge change in performance for the 3.8L. Improving throttle response, mid range power, the car also pulls strong on the top end. If requested, we can also raise the rev limiter up to 500rpm. The ECU flash is a perfect upgrade for those with a exhaust, headers, intake, or other parts. See all VR Tuned ECU Flashes for the Porsche 997 Carrera Here. 3.6L Gains Crank Horsepower Ratings: Stock Power – 325HP and 273ft/lbs Tuned Power – 345HP and 295ft/lbs 3.8L Crank Horsepower Ratings: Stock Power – 355HP and 295ft/lbs Tuned Power – 375HP and 310ft/lbs VRT-997-36 VR Tuned ECU Flash Tune Porsche 997 Carrera 3.6L 05-08 $700.00 VRT-997-38 VR Tuned ECU Flash Tune Porsche 997 Carrera 3.8L 05-08 $700.00 Leave a Reply Cancel ReplyYou must be logged in to post a comment.