I think it is more suitable for manual tranny cars rather than auto tranny. I used one on my VR4 auto but find the RPMs jumped as high as 9k and suffer rev cut from the stock ECU.
Anyone here know of how to install a flame thrower at the exhaust tip? Even a slight flame will be fine. Driving a WRX 03 model. Heard that theoratically, its basically a spark plug thats connected to the car battery...