goochie72 10 Posted April 4, 2015 Hello everyone. recently installed new sns chip and 3.5 bar fpr to my g60, accelerates better now, but seems to start holding back at 4500 / 5000 rpm, charger is creating a lot of boost as its been ported, but thought new chip would let it 'over boost', without bleeding of the extra. i have a caddy with a g60 in it with same chip but has got the reserc pipes blanked and the isv disconnected, that revs up fine any ideas cheers Quote Share this post Link to post Share on other sites