E46 M3 Decat pipes fit Z4M?

bmwaddict

Senior member
 West Herts/East Bucks
I've been after some decat pipes for a while, they rarely seem to come up and at around £400 for a new set from Superprint and similar it's a bit steep for what is essentially 2 straight 2ft lengths of exhaust pipe. Lots come up for the m3 and they look identical, does anyone know if they fit the z4m? I know the back boxes are totally different, but the decat pipes fit before the x pipe (section 2) and as it's from the same engine I'm hoping they fit and I can save myself about £300 quid! (maybe wishful thinking I know). T.I.A.
Pic of some m3 decat pipes below.
10zrzu9.jpg
 
they wont fit as the flanges are in the wrong orientation for the z4m..... how annoying :headbang: :headbang: :headbang:

easy fix for a decent welder however.
 
What is the main difference fitting these decat pipes, noise or performance, i take it you remove the cats and fit these pipes in their place, any sound files out there?👍
 
They drop a little performance below 3k, but then makes it up and adds some over 3k. You'll need a tune unless you can live with a CEL.
 
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