Chargemeup 10 Posted April 13, 2015 Thinking of squeezing a little extra out of my G60 with a slightly smaller pulley 68 to 65mm. Tell me is it absolutely necessary to upgrade the chip too? Or will it not feed the correct amount of fuel? Everything else on the car is stock even the ride height! Quote Share this post Link to post Share on other sites
Chargemeup 10 Posted April 18, 2015 Ok seeing as I've had no replies I'm just going to get one and see what happens......:bonk: Quote Share this post Link to post Share on other sites
STU175 0 Posted April 18, 2015 yes you must change the chip if changing pulley size. fueling will not be right otherwise. Quote Share this post Link to post Share on other sites
