Jesper Fahlberg 10 Posted January 21, 2016 Hello Corrado Forum! :) My G60 engine (8v) is now finally at the stage of getting it's first small adjustments :bonk: I have heard alot about adjusting the boost return valve, to close earlier, to gain the maximum boost before the max throttle? What are the pro's and con's about this? And how would i excactly do this? Quote Share this post Link to post Share on other sites