Quote:
Originally Posted by UntzUntzUntz
Say you do a euro header swap, picking up a 400 cell for the s-pipe is pretty dense don't you think? I'm not sure how much OEM is (I think 200 on the headers and 200 on the s-pipe) but it seems to me this is pretty much equivalent to buying euro s-pipes.
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I believe OEM is 400 cell for both.
Besides the density, there's also the cat length. Euro cats are huge. North American cats have the same material, but less of it, so they should flow better.