TNEER Valvetronic Exhaust System for Audi RS Q8 2020+
(Fits- Audi RS Q8 2020+)
- Guaranteed Safe CheckoutClick to see all payment options
- Inquire now
TNEER Valvetronic Exhaust System for Audi RS Q8 2020+
The Audi RSQ8 is built around a front-mounted 4.0-litre twin-turbocharged V8 producing 591 horsepower, the EA825 engine with 48-volt mild hybrid technology and cylinder deactivation fitted to Audi's largest and most performance-focused SUV. The RSQ8 sits at the top of the Q8 range and represents the most powerful production Audi SUV available, combining the EA825's high-output twin-turbocharged V8 with the Q8's large SUV body, air suspension, and all-wheel steering architecture. The platform shares its MLB Evo underpinnings with the RS6 and RS7 but presents significantly different exhaust routing requirements through the Q8's taller, wider SUV body and raised underbody layout, with extended primary runs and packaging constraints specific to the RSQ8's chassis configuration. TNEER engineers this valvetronic system specifically for the RSQ8, with mid X-pipe placement and mounting geometry developed to the exact underbody architecture of the platform.
Each section is formed from single-piece high-grade stainless-steel tubing using robotic pipe bending technology, producing continuous tube geometry throughout the system without the weld joints and flow disruptions of multi-segment construction. The mid X-pipe cross-links both exhaust banks at the mid-system junction, balancing pulse energy between the V8's cylinder groups. On a twin-turbocharged V8 platform with cylinder deactivation technology, mid-system pulse balancing through an X-pipe contributes to both exhaust flow efficiency and tonal coherence across the rev range, maintaining consistent acoustic character regardless of whether the V8 is operating on four or eight cylinders at any given throttle position. The system installs to all factory mounting locations, requiring no structural modification and maintaining correct chassis alignment throughout.
The ECU-controlled valvetronic rear mufflers manage acoustic output through the RSQ8's existing drive mode architecture without secondary controllers or aftermarket modules. Valves closed, the system maintains a composed, refined tone appropriate for the RSQ8's luxury performance SUV character and its broad daily operating profile, while presenting more of the twin-turbocharged V8's acoustic presence than the factory exhaust allows at any throttle position. Valves open, the full acoustic output of the EA825's 4.0-litre twin-turbo V8 is unobstructed and responds directly to throttle input and engine speed. On a 591 horsepower performance SUV where the exhaust note is a defining element of what separates the RSQ8 from the standard Q8 range, the distinction between the factory exhaust's managed output and the V8's full acoustic character with valves open is immediate and significant on every drive.
Optional Downpipe Configurations
For owners who want to address the primary restriction point in the exhaust path, TNEER offers two downpipe specifications that deliver meaningful performance and acoustic improvement beyond what the mid X-pipe and valvetronic muffler system alone provides.
- The race downpipes remove the factory catalytic converters immediately downstream of the turbocharger outlets, where back pressure reduction has the most direct effect on turbine behavior, spool characteristics, and mid-range torque delivery. On the EA825's twin-turbocharged V8 at 591 horsepower in the RSQ8's SUV platform, the relationship between downstream restriction and turbocharger efficiency is immediate and measurable at every point in the rev range. These components are intended for closed course and off-road use.
- The 200-cell sport downpipes retain a high-flow catalytic substrate in place of the factory units, reducing restriction significantly while maintaining a level of emissions compliance appropriate for street-driven builds. For RSQ8 owners who require a balance between full-system performance and the vehicle's daily luxury SUV operating profile, the 200-cell specification delivers a substantive upgrade within a practical context.
All downpipe components are fabricated from high-grade stainless steel and engineered to the same fitment standard as the valvetronic muffler system.
About TNEER:
TNEER is built around a single engineering conviction: the exhaust system is not a peripheral component. It is the primary interface between the engine and the driver's experience of it. Every system TNEER produces is developed to bring out the true voice of the engine it is built for, improving exhaust flow and delivering a distinct tone that is mechanical, raw, and directly connected to the character of the car.
The manufacturing process that defines TNEER's fitment standard is their high-tech robotic pipe bending technology. Rather than fabricating exhaust routing from multiple welded sections, TNEER forms each tube from a single continuous piece, bending high-grade material to navigate the spatial constraints of each specific engine bay without the diameter reductions, flow disruptions, and structural inconsistencies that welded multi-piece construction introduces. The result is an exhaust system with continuous tube geometry, perfect fitment to the platform it is built for, and no compromises in the routing that precision bending makes unnecessary.
For enthusiasts who regard sound and performance as inseparable elements of the driving experience, TNEER engineers each system to deliver both from the first throttle input.
Note:
- Downpipes are not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only.
- ECU tuning may be required due to removal of factory catalytic converters.
Fitment:
- Audi RSQ8 2020+