My mechanic (BMW Specialist) has an exhaust shop they use that does the whole proper PE MOD for $650, but one of my mates with an 2011 got his essentially straight piped for $150 at some other place. I've been contemplating both tbh but part of me would still like the OEM part so i can always replace the stock unit when it comes time to sell.
In saying that theres no harm in getting more info and prices from other shops. PM me the details if you'd like.
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"Seats and a steerin' wheel" - N54 E82 135i | AR DP's | OSK DCI | VRSF CP | TS BOV | M̶H̶D̶ ̶S̶2̶ Stage 1| 2̶6̶0̶R̶W̶K̶W̶ (less)| 6MT | MPSS
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