I have a 135 but I also recommend the RSFB inserts or 2 piece. Also recommend putting a differential lockdown bracket on. I bought mine from a forum member. I think it was 135droptop
Those + M3 front arms & Ohlins suspension and it's a pretty big improvement
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2011 135i w/ DCT | ZSP Sport Pkg | PPK | Ohlins R
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