90mm T/B
#2
From what I have seen, the intake itself is much more of a restriction than the TB itself. But going to a ls3 or fast intake is expensive and will sacrifice low end power. It would be great to see 1 or 2 truck style aftremarked intakes. We need our power at low rpm but shouldn't have to sacrifice power at higher rpm. It's not like we are trying to turn 9k rpm.
#3
TECH Senior Member
iTrader: (5)
The nnbs truck intakes, rectangular or cathedral, mast cant improve on, had that conversation with them when i was building my 99. As far as the throttle body if you have a 4" intake and maf tube, it certainly wiuldnt hurt, generak consensus is better throttle response, but minimal gains, however if you are in need of a throttle body they are typiclly slightly less expensive than the truck tb, or same price!