Audi RSQ8/SQ8/SQ7 400 Cell Catted Downpipes
$5,779.00
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SKU:
LAM.AUD.URUS.RSQ8.FF.400C.BR
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Audi RSQ8/SQ8/SQ7 400 Cell Catted Downpipes
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$5,779.00
Audi RSQ8 / SQ8 / SQ7 – EPA-Compliant 400 Cell Catted Downpipes
Unlock the Full Potential of the 4.0T Twin-Turbo V8 • High-Flow • Compliant •
Introducing Our NEW 400 Cell EPA-Compliant Downpipes for Audi 4.0T
The 4.0T twin-turbo V8 powering the Audi RSQ8, SQ8, and SQ7 delivers immense performance — but factory catalyst restrictions hold it back. Our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to increase exhaust flow, enhance turbo efficiency, and dramatically sharpen the vehicle’s sound profile — all while maintaining emissions compliance standards.
This is the foundation of true 4.0T performance.
Why Upgrade to 400 Cell?
- EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust velocity while maintaining compliance standards.
- Faster Turbo Spool: Reduced backpressure improves throttle response and mid-range torque delivery.
- Sharper Exhaust Note: Enhanced turbo acoustics with deeper low-end presence and more aggressive top-end tone.
- Optimized Performance Balance: Noticeable gains without compromising daily drivability.
Performance & Engineering
- Optimized Flow Architecture: Designed to reduce restriction while preserving catalyst efficiency.
- Mandrel-Bent Tubing: Smooth internal transitions for maximum airflow.
- Precision TIG Welding: Built to withstand extreme exhaust temperatures and boost pressures.
- Direct OEM Bolt-On Design: Utilizes factory mounting locations for straightforward installation.
- Engineered to Pair Seamlessly with Valvetronic Titanium Exhaust Systems
Sound Transformation
- Stock Exhaust + Downpipes: Noticeably louder with stronger turbo character and deeper exhaust tone.
- Valvetronic Exhaust + Downpipes: Maximum transformation — sharper transitions, increased aggression, and a true RS-inspired exhaust signature.
Construction & Durability
- Premium high-grade stainless steel construction
- High-temperature resistant 400 cell catalyst cores
- OEM-style sensor placement for proper operation
- Engineered for long-term reliability under high boost
Unleash the true sound and performance of your Audi 4.0T — starting at the source.
📩 Questions or ordering assistance? customerservice@valvetronic.com
- Brushed T304 Stainless Steel
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Warranty Coverage
All products manufactured by Valvetronic Designs are guaranteed to be free from manufacturing defects in materials and workmanship at the time of sale. A manufacturing defect is defined as any characteristic of the product that arises during the manufacturing process which impairs its usability for the purposes for which it was designed and manufactured.
Products are guaranteed to fit and function as designed on their intended vehicle application, provided the vehicle has not been modified or incurred structural damage. Sound or tone is not a warrantable or returnable issue, as exhaust sound is subjective and not considered a defect.
Warranty Periods
- 304 stainless steel and titanium exhaust tubes and welds carry a Lifetime of Ownership limited warranty against defects in workmanship or material, including penetrating rust.
- Mufflers and resonators carry a 3-year limited warranty against defects in workmanship or material, including penetrating rust.
- Catalysts are warranted to conform to EPA emission testing and OBDII compatibility criteria for 25,000 miles from the date of installation, whichever occurs first.
- Catalytic converter external shells, including end pipes, are warranted against corrosion and defective welding for 5 years or 50,000 miles from the date of installation, whichever occurs first.
- Vacuum pots, electronic remotes, and mechanical valves are covered by a 1-year limited warranty.
- Electronics, including 12V vacuum pumps, RF modules, and controllers, are covered by a 1-year limited warranty.
- Tip finish is covered by a 1-year limited warranty.
Warranty Terms
- Warranty coverage begins on the purchase date and applies only to the original purchaser.
- This warranty is not transferable or assignable at any time.
- Discoloration caused by heat, salt, brine, or other road treatments is not covered.
- Tip finish discoloration or damage caused by heat, chemicals, lack of maintenance, road salt, brine, other road treatments, road debris, or misuse is not covered.
Audi RSQ8/SQ8/SQ7 400 Cell Catted Downpipes
