REDSTAR Catless Downpipes for BMW M3 F80 & M4 F82 F83

Elimination the stock restrictive catalytic converters provide a huge increase in exhaust flow and will allow for a significant power gain.

Compatible Vehicles:

• 2014-2018 BMW M3 F80 Sedan 3.0 S55 L6 Twin Turbo
• 2014-2018 BMW M4 F80 Coupe 3.0 S55 L6 Twin Turbo
• 2014-2018 BMW M4 F80 Convertible 3.0 S55 L6 Twin Turbo

Available options:

• 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

Our Advantages:

• 100% bolt-on installation
• 100% hand made in Russia
• 100% TIG welded and back purged
• highest quality 1.6mm wall 304 stainless steell
• OEM-spec 304SS flanges
• all brackets and mounts as on OEM unit
• 5 year warranty against any defects given to original owner

Notes:

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