nbh2

I just finished installing Corsa Sport with an AEM Brute Force intake (Sounds great btw) - next in line is a set of LT Headers and id like to change out the intake manifold and throttle body - been looking around and cant find any opinions on what size is best. They offer 78-90-or 92mm intake manifolds - anybody have any input on which would be best? Dont know which manifold / throttly body combo would be my best bet.

05 GTO

B-ville Goat

Unless you are going full tilt, the stock 90mm throttle body is fine. There are numerous manifolds available, or you could have your stock one ported. The FAST manifolds need an extra insall kit for the LS2 that's in the 05/06 cars. Once you get all this together with the headers and all, get a tune as well to optimize everything.

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GM4life

Don't bother your intake or throttle body very minimal gains. HP to dollor ratio is not worth the money. When you have enough mods where they become a bottle neck than change them.

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2004 QS/M12 w/mods
If its not BLOWN it SUCKS!

PDQ GTO

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Maggie 112, 228/232-595 Comp. cam, dual valve springs, titanium retainers, chromoly pushhrods, 160 Therm, KB BAP, ECS Tensioner, Pinned Crank, NGK TR-6, SLP LT's & LM-I, Cat. Del. BMR SG, Billet Shifter, BMR Loop, Synergy tune: 482 RWHP, 464 RWT.