I have the PE in my car but only installed the rear muffler section, leaving the resonator from section as is. As I have an N55 the sound is awesome and there is no drone. The exhaust gives the car a nice exotic sound at part throttle and is clearly louder than stock at WOT. I never installed the y pipe because I didn't want excessive noise and the N55 is already louder in stock form than the N54.
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12' 135i DCT, Convertible, Triple black, Nav, Apps, BMW Shadow Grilles, LCD interior lighting, BMW PE, Michelin PSS.
06' M Roadster, SMB/Red, AA Tune, K&N, Remus Exhaust, ZHP shift knob, Hyperblack M Rims.
09' BMW 328i Touring, Monaco Blue, Panoramic roof, Nav.
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