Downpipe For BMW F10 F18 520i 523i 525i 528i 530i N20 With 200 cells

  • 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.