REDSTAR heatshielded downpipes for all Audi S6 RS6 S7 RS7 A8 S8 with 4.0 TFSI engine.

Double-layer heatshielding is used to protect surrounding parts, wires, and hoses against radiant heat from the downpipes.
Integrated thermal insulation reduces surface temperature up to 70%! What makes it an absolute winner, compared to usual thermal wrapping or ceramic coatings.
It’s very important not just for safety reasons but also affects engine performance by reducing the underhood temperature. We highly recommend this option, especially for catted downpipes.

Our downpipes utilize OEM X-crossing design and have OEM-spec bottom flanges. Those downpipes will fit the factory exhaust or any performance cat-back system. 

Compatible Vehicles:

• 2012- Audi S6/RS6 Quattro C7 C7.5 4.0 TFSI
• 2012- Audi S7/RS7 Quattro C7 C7.5 4.0 TFSI
• 2012- Audi A8/S8 Quattro D4 D4.5 4.0 TFSI

*Available options:

• GESI UHO 300cpsi high-flow Metal Core Catalytic Converters. Rated 500-850hp each. Made in Canada. EPA certified for use on OBD2 vehicles (1996 and newer) 49 States. 
• HJS HD 200cpsi Ultra High-Performance catalytic converters. Made in Germany. No CEL issues, no ECU tuning required.

Main Features:

• 3in OD with smooth transition to OEM-spec bottom flanges
• OEM X-crossing design, no O2 wire extensions needed
• designed to fit OEM Mid-Pipes
• 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

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 (can be eliminated with optionally O2 sensors restrictors). Firmware update recommended to get maximum performance gains.