Ls1 throttle body
What mods are already on the car? If said friend is just now putting a K&N on the car, the car probably isn't ready for a 100mm TB yet. 9Xmm is probably too big too unless there are supporting mods in place. I believe the most restrictive piece in that setup is the factory MAF but do some searching and look at the factory sizes..if you have, say, 68mm MAF(random number here), having a 92mm throttle body behind it will just give you drivability problems and negative gains.
Best bang for buck would likely be a custom tune. Then LS6 intake, headers, exhaust, and at that point TB, MAF, etc.
Good luck with your project.
"Best bang for buck would likely be a custom tune. Then LS6 intake, headers, exhaust, and at that point TB, MAF, etc."
I did leave out gears and that is right in the middle there. I don't own an F-body so I can't give you specific part mfg/models. Post your need in the Camaro forum and those guys will likely give you a suggested specific list of parts so you know what to order.
Good luck with your project. You'll be fine as long as you plan carefully for each mod to compliment the rest.
Link to K&N Cold Air Intake (On Sale)
Link to Custom Grind Camshafts
Link to Throttle Bodies
Link to FAST 92mm Intake
Link to Pro 5.0 Shifter
Link to HINSON Motorsports Spark Plug Wires

