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      07-31-2018, 12:13 AM   #4
Finnegan
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Drives: Z4M/. Z3M, E36/46 M3
Join Date: Oct 2008
Location: Teaching the dog to slalom

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Quote:
Originally Posted by AriuSen View Post
Quote:
Originally Posted by wdb View Post
I have Eisenmann Sports, they're a whole lot smaller than stock. No more gonads hanging under the back of the car.
Hmm they are still pretty big compared to RPI
Yep. You're going to need some kind of muffler built in upstream of the diffuser. That's a tough nut, as space becomes an issue unless you use the space where cats were. Cats serve as sound reducers, and I don't know if you can reduce sound without some flow/power restrictions. That's above my pay grade lol.
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