Downpipe For BMW B48 F30 F31 F34 230i 330i F32 F33 F36 430i

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