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      11-15-2012, 03:54 AM   #7
Route 16
I got lei'd
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Drives: '07 E90 328i
Join Date: Sep 2011
Location: BayArea

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After the sr pipe I went with 3inch piping for the midpipes, IMO I think the exhaust velocity is too slow compared to stock and eisenmann pipes. And I do plan to reinstall the sr pipes after a few dynos just to see which is better. Eisenmann left their resonator on for a reason. I'd imagine they've done their R&D to justify that.