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      12-12-2012, 09:36 PM   #9
FogCityM3
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Drives: M3 (E90)
Join Date: Feb 2012
Location: San Francisco

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If cat-back only (and no x-pipe), M Performance exhaust is a good option. Has a unique sound quite unlike any other exhaust out there and will definitely differentiate your vehicle, made of a different allow/Inconel (Eisenmann's comparable Inconel system is $7.5k), OEM quality/warranty, engraved ///M exhaust tips, no drone, saves ~20 lbs, and doesn't lose any hp/torque in low and mid-range like a lot of cat-backs have shown (although is only for sound..no material hp gains either). With parts deals, can be gotten around $3,300, which is still expensive tho.