Valvetronic Designs 400 Cell Catted Downpipes for Lamborghini Urus / Audi RSQ8 / SQ8 / SQ7 / Porsche Cayenne / Bentley Bentayga V8 (4.0T V8)
Valvetronic Designs 400 Cell Catted Downpipes for Lamborghini Urus / Audi RSQ8 / SQ8 / SQ7 / Porsche Cayenne / Bentley Bentayga V8 (4.0T V8)
TAG Motorsports is pleased to offer the Valvetronic Designs 400 Cell Catted Downpipes for the Lamborghini Urus / Audi RSQ8 / SQ8 / SQ7 / Porsche Cayenne / Bentley Bentayga V8.
Lamborghini Urus – EPA-Compliant 400 Cell High-Flow Downpipes
Engineered for the 4.0L Twin-Turbo V8 • High-Flow • Compliant •
Introducing Our NEW 400 Cell EPA-Compliant Downpipes for the Urus
The Lamborghini Urus delivers supercar-level performance in an SUV platform — but factory catalyst restrictions limit the full potential of its 4.0L twin-turbo V8. Our NEW EPA-compliant 400 cell high-flow downpipes unlock improved exhaust flow, sharper turbo response, and a deeper, more aggressive sound profile — all while maintaining emissions compliance standards.
Engineered specifically for the Urus platform, these downpipes represent the next evolution in compliant high-performance exhaust technology.
Why 400 Cell?
- EPA-Compliant 400 Cell Catalysts: Designed to increase exhaust flow while maintaining compliance standards.
- Improved Turbo Efficiency: Reduced restriction enhances spool characteristics and throttle response.
- Enhanced Exhaust Tone: Deeper low-end presence with sharper turbo acoustics and a more exotic character.
- Balanced Performance: Noticeable gains without sacrificing daily drivability.
Performance & Engineering
- Optimized Flow Path: Reduces backpressure while maintaining catalyst efficiency.
- Mandrel-Bent Tubing: Smooth internal transitions for maximum airflow.
- Precision TIG Welding: Built to withstand extreme heat cycles and boost pressures.
- Direct OEM Fitment: 100% bolt-on design using factory mounting locations.
- Designed to Pair Perfectly with Valvetronic Titanium Exhaust Systems
Sound Profile
- Stock Exhaust + Downpipes: Noticeable increase in volume with enhanced turbo character and deeper tone.
- Valvetronic Exhaust + Downpipes: Maximum transformation — heightened aggression, sharper transitions, and a true Lamborghini-inspired exhaust note.
Construction & Craftsmanship
- Premium high-grade stainless-steel construction
- High-temperature resistant 400 cell catalyst cores
- OEM-style O2 sensor placement
- Engineered for long-term durability under high boost
Important Installation Notes
- Professional installation recommended.
- Allow proper heat cycle break-in for optimal catalyst performance.
- Ensure correct torque specifications during installation.
Unlock the full potential of your Lamborghini Urus — starting at the source.
Valvetronic Designs part number: LAM.AUD.URUS.RSQ8.FF.400C.BR
Fits: Lamborghini Urus / Audi RSQ8 / SQ8 / SQ7 / Porsche Cayenne / Bentley Bentayga V8 (4.0T V8)
***FOR OFF ROAD USE ONLY - TAG IS NOT LIABLE FOR ANY CITY/STATE/FEDERAL ISSUES CAUSED BY PURCHASING OR INSTALLING THIS PRODUCT***
EMISSIONS NOTICE - NOT CARB LEGAL
This product does not have a California Air Resources Board (CARB) Executive Order (EO) number. Not legal for sale or use in California, or in any state that has adopted California emissions standards, and not legal for use on any pollution-controlled motor vehicle operated on public roads.
Note: For off-road / competition use only, not intended for use on public highways. It is the buyer's responsibility to know and follow the emissions and noise laws where the vehicle is registered and driven.
| SKU | LAM.AUD.URUS.RSQ8.FF.400C.BR |
|---|---|
| Brand | Valvetronic Designs |
| Exhaust Tip Size | 90mm |
PROP65 WARNING
PROP 65 WARNING – Products sold by TMS such as lead acid batteries contain lead, which is known to the
state of California to cause cancer and birth defect or other reproductive harm. Safety Data Sheets for
products sold by TMS are available upon request.
For more information go to:
www.p65warnings.ca.gov/fact-sheets/lead-and-lead-compounds
| Many Items Are In-Stock & Ready-To-Ship. Typically Up-to 3-6 Weeks for Items Not In-Stock. |