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WTB: JB4 Stage2 N55 Harness B
I purchased my 535ix back in april. I loved the car the way it was, but now it feels like its a little slow to me. Plus my brother just got a 550ix and its a different animal. I've heard that these JB4's make a 535i feel like a 550i and the 550i to M5. I dont know how true it is. But i would like to give it a try. Also i would like to buy a code reader/eraser. Any suggestions on a brand?
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