14-02-2012, 10:49 PM
Depends if the engine has got a knock sensor as to whether it'll make a massive amount of difference...
The GTi6 does, but I don't know if all the others do... It should realise and start bringing in the timing which will help with power...
The GTi6 does, but I don't know if all the others do... It should realise and start bringing in the timing which will help with power...