I'm sorry if this question has been done to the death. I've been searching for a while and have found so many conflicting opinions with no actual dyno charts to prove anything. I've asked engine builders and they couldn't give me a definitive answer...
So here it is (as the thread is titled):
Gti6 intake manifold (with gti6 throttle body) on an S16 XU10 - what are the gains??