Keller Performance

Keller Performance BMW F90 M5 Downpipes

MF9-P001R high flow downpipes are made to eliminate exhaust flow restriction for maximum Horsepower and Torque gains. Manufactured with the highest grade T304L stainless steel,
3D scanned for 100% guaranteed direct fitment and best performance on the market.

  • Improves Sound
  • Adds Horsepower and Torque
  • Reduces Weight