Hi everyone I'm new to the 335 scene just picked mine up 3 months ago an 07 with 84k. I work at a bmw dealership so I'm not afraid to work on it. But I have one question I just ordered a set of burger turning ******* downpipes and was wondering if that I get the downpipe fix will I be fine or do I need to go jb4 or Cobb route.
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