Rb25

[tommyb]

can anyone tell me if rb26 twin turbo exhaust manifolds fit a rb25 motor

[Craved]

no they dont, you can get adapter plates made up... but the flanges dont match

[extreme turbo manifolds]

yeah the #5 cylinder studs are opposite with rb25 and 26

[aphid]

yeap, cyl #2 and cyl #5 are reversed to allow the studs to clear the manifold piping, you can cut the flanges off on these cylinders and flip them over and have them welded back on and you've got a direct fit save for trimming the studs so they clear... or you could just buy them like that like i did