REDSTAR Downpipes - number one performance mod for your 4.4 V8 BMW M TwinPower Turbo engine.

Compatible Vehicles:

• 2012+ BMW M5 F10 Sedan S63B44 4.4 V8 Bi-Turbo
• 2012+ BMW M6 F12 Coupe S63B44 4.4 V8 Bi-Turbo
• 2012+ BMW M6 F13 Convertible S63B44 4.4 V8 Bi-Turbo
• 2013+ BMW M6 F06 Gran Coupe S63B44 4.4 V8 Bi-Turbo

Available options:

• GESI HO high-flow Metal Core Catalytic Converters. Rated 350-500hp each. EPA certified for use on OBD2 vehicles (1996 and newer) 49 States. 
• OEM-style Heat Shielding with ceramic inner liner - the best way to reduce radiant heat up to 70%. Usual thermal wraps not even close in effectiveness and durability to the Heat Shields.

Main Features:

• Significant power gain
• Faster spool up and better throttle response
• Increasing the life of the turbos 
• Reducing under hood temperature
• Adds a very nice tone to the exhaust
• 100% bolt-on installation
• 100% TIG welded and back purged
• Highest quality 1.6mm wall 304 stainless steel
• OEM-spec V-band flanges
• All brackets and mounts as on OEM unit

Why Buy Our Products?

  You buy directly from the manufacturer and all the products 100% handmade in Russia.
  We don't compromise on quality! No mild steel flanges, no weak clamp joints, no other cost reduction tricks.
  Free flow is our priority! No steps and restrictive areas, only smooth transitions, bigger diameters, and optimized design.
  Our welds and whole craftsmanship better than most of the competitors. Pictures speak for themselves.
  5-year warranty against any defects given to the original owner.

Notes:

Removing of factory catalytic converters will trigger a сheck engine light. Firmware update recommended to get maximum performance gains.