Open up your exhaust to a whole new sound.
Audi 4M RS Q8 Quattro 4.0T Performance Exhaust Parts & Upgrades
Made in the USA! 100% Bolt On Installation. Simple DIY installation; no cutting or welding required
Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet - Left and right
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
08-29-2026
These downpipes are fabricated with a larger diameter than standard OEM parts, meaning that there is significantly more space for more gas to exit the engine and pass through, increasing efficiency.
Requires Stage 2 ECU Remap
For Non OPF / GPF Equipped Models
This product was last offered at the strikethrough price on
08-29-2026
This product was last offered at the strikethrough price on
08-29-2026
Gain up to 80hp and 90flb of torque with these downpipes.
Requires Stage 2 ECU Remap
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
3.0" Inlet - 3.5" Outlet - Forged Carbon Sleeve
This product was last offered at the strikethrough price on
05-19-2026
2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet
10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Bolt-on upgrade, designed to optimally eliminate unwanted restrictions in the factory downpipes, reduce turbo lag, and enhance the exhaust note.
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Stainless steel downpipes with 200 cell catalytic converters