From Bigdane - a Car Club enthusiast

4 of us have already added the GTO into our engines lately. After putting it in, we turn it on in idle mode then we test drove it in slow to fast runs and it was great, its pick up, the smoothness and the lightness of the engine when you step on the gas is really different than before...more of our members will use and add this on,asap...still under observation on the engine performance. thank you