Quote:
Originally Posted by ASH930
The Eisenmann Sport has a restriction in one of the connecting pipes between L & R mufflers; also there is mesh inside the mufflers. The Race has neither of these.
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Quote:
Originally Posted by GregW / Oregon
Well, my Sport does not have the pinched cross pipe, though it does have the mesh. Here's the plate on mine.
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Thanks guys! That's 100% correct. The Sport performance has perforated piping. Its very easy to tell the difference between the two. The pinched piping came out at a later date once Eisenmann tested the system on a E93 M3.