Just took off the car this past weekend. Had the 4 pipe mod done at a local shop. All 4 perforated pipes were cut out and replaced with solid pipes and it was welded up and painted over the welds. Not the cleanest welds, but it got the job done. Sounds unbelievable when paired with catless x pipe (also for sale).
Local pick up only in Frederick MD for $400. FOR E92 M3.