This set of Keller Performance BMW F90 M5 MF9-001R high flow downpipes are made to eliminate exhaust flow restriction for maximum Horsepower and Torque gains. Beautifully true 100% TIG hand welded and Manufactured with the highest grade 304 & 310 stainless steel for maximum corrosion, wear and heat resistance.
3D scanned and mandrel bent for 100% guaranteed direct fitment and best performance on the market. Equipped with high durability, directional, smooth flow solid liner flexpipe, utilizing CNC flanges and factory bracket placements.
- 100% Guaranteed Direct Fitment
- Aggressive sound
- Lifetime Warranty
- Increased Horsepower and Torque
- Significant Reduction in Weight Vs. Stock