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      01-15-2013, 11:44 AM   #61
Drives: 2011 e92 M3
Join Date: Dec 2012
Location: NY

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Originally Posted by MikeE92M3 View Post
Yes, I think I started a revolution. 1300 miles later, the exhaust sounds so mellow with virtually no drone at cruising speeds. Win.
I believe it.

The Nissan 350-370 crowd have been running them for years and they have a few aftermarket applications tailored with branch resonators.

I am not sure why a tuner hasnt stepped up to produce these for our cars. Something designed with carefully calculated sizes and lenghts (no offense to your math skills )

Folks seem intent on welding straight through resonators in the Xpipe but branch resonators in the rear section is what really eliminates drone.
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