Quote:
Originally Posted by Ricky Bobby
Put the Eisenmann on first with the factory resonator. If you enjoy the sound as is, don't worry about the Xpipe. If you are longing for more after the Eisenmann, do the Xpipe.
Personally I think Xpipe plus aftermarket exhaust is too much.
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Yes the X-pipe with the Eisenmann Race is much too much noise. You will have drone and few other nasty noise variables (pop crackling) in the vehicle. I have the Eisenmann Race on my 4.6is X5 and its awesome but I did leave the factory resonator in place. The resonator has a lot of sound absorption material in it. leave it on. I think you will pleased with unit.