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      11-15-2012, 03:06 AM   #5
speedfan
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Drives: BMW
Join Date: Dec 2010
Location: HCM City


Posts: 1,105
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I'm running the resonator delete & I'd advice against it.

in the past, I had the Eisenmann SR pipe + Eisenmann race rear muffler. Then I pulled out the Eisenmann SR pipe, sold it Route 16 here, put back the stock pipe, deleted the resonator for the loudness.

Even though my car gets quite a bit louder, but I can tell I lose some backpressure & therefore horsepower.
My car isn't as responsive as a friend's stock 325i.

I'm about to buy the Eisenmann SR pipe & slap it on again.

my $0.02
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