Need help

would an si trottle body make any HP increase on an HF manifold.Becouse it bolts right up.I just dont want to order a cold air intake and have it be useless.Wha do you guys think?

Are you sure they are not the exact same thing? It might not make that much differences because sure there might be more air getting in but then it gets choked again from your small intake manifold. There ain't too much thats going to make any HP on an HF motor.

I have an si motor with a HF manifold.Dont ask why

dude you should seriously buy an si intake manifold off ebay or something, i see them go for like $20 all the time. you are losing out on mega horsepower with that quarter sized intake

I had it but since it didnt have the sensor i wouldnt pass the smog.So i had to put the HF one on.

Anyone else:confused: ?