Prelude header

Dogg1210 · Post by **Dogg1210** » Mon May 26, 2014 11:19 am

Bought a prelude header and downpipe of here a couple month back. Yesterday I took the header of and went to put my old atr aftermarket header on but it didn't line up with the bolts will I need to get a prelude aftermarket header? I thought with them both being h22 they would've fitted any help appreciated

Post by **Merlin** » Mon May 26, 2014 11:39 am

Without being there it is hard to see why it would not fit. I can only assume that the exhaust manifold you bought was not for an H22

Post by **Vtecmec** » Mon May 26, 2014 12:21 pm

Are you trying to mix and match manifolds and downpipes?

Post by **Merlin** » Mon May 26, 2014 12:26 pm

^Didn't think of that. Thought he was on about the stud pattern on the head.

Dogg1210 · Post by **Dogg1210** » Mon May 26, 2014 1:12 pm

Yeah should have said that sorry it's the 3 studs that join the header and downpipe that don't line up the down pipes off prelude dono what the headers off

Dogg1210 · Post by **Dogg1210** » Mon May 26, 2014 1:22 pm

Post by **Vtecmec** » Mon May 26, 2014 1:43 pm

unfortunately most aftermarket downpipes and manifolds are not interchangeable. they could all be h22 parts, just not compatible with one another.

Dogg1210 · Post by **Dogg1210** » Mon May 26, 2014 1:49 pm

Lol bugger

would I be able to drill the holes for where the studs go bigger for them to fit? Or would I be aswel to get my mate to cut the flange off my old downpipe and weld it to the one I got to make it fit?

Post by **Vtecmec** » Mon May 26, 2014 3:02 pm

Either or, but make sure that the pipes align properly once done, or it'll ruin the gas flow.

Dogg1210 · Post by **Dogg1210** » Mon May 26, 2014 3:26 pm

Cheers