EXHAUST CATBACK For bmw X5M/X6M easily installation

1: All materials are stainless steel 304, and wall thickness 1.5mm.
2: All flanges must be leveled after welding. The welding seam should not be larger than 0.3mm.
3: Surface brushed or polished treatment.
4: The inside of the finished pipe must be ensured that there is no oil, burrs and dust.

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