Valvetronic Designs 400 Cell Catted Downpipes for BMW F80 M3 / F82 M4 / F87 M2 Competition (2015-2021)
Valvetronic Designs 400 Cell Catted Downpipes for BMW F80 M3 / F82 M4 / F87 M2 Competition (2015-2021)
TAG Motorsports is pleased to offer the Valvetronic Designs 400 Cell Catted Downpipes for the BMW F80 M3 / F82 M4 / F87 M2 Competition.
BMW F8X M3 / M4 – EPA-Compliant 400 Cell Catted Downpipes
Engineered for the S55 Twin-Turbo Inline-6 • High-Flow • Compliant •
Introducing Our NEW 400 Cell EPA-Compliant Downpipes for the F8X Platform
The BMW F8X M2, M3 and M4 are icons of modern performance, powered by the high-revving S55 twin-turbo inline-6. While the factory catalysts prioritize restriction and sound suppression, our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to unlock improved exhaust flow, sharper throttle response, and a more aggressive turbo character — all while maintaining emissions compliance standards.
This is where the S55 truly comes alive.
Why Upgrade to 400 Cell?
- EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards.
- Faster Turbo Spool: Reduced backpressure enhances responsiveness and mid-range torque delivery.
- Sharper Exhaust Tone: Cleaner, more pronounced turbo acoustics with a deeper overall note.
- Street & Track Balanced: Noticeable performance gains without sacrificing daily drivability.
Performance & Engineering
- Optimized Flow Design: Minimizes restriction while preserving catalyst efficiency.
- Mandrel-Bent Tubing: Ensures smooth internal transitions and consistent exhaust velocity.
- Precision TIG Welding: Built to endure high exhaust temperatures and sustained boost pressure.
- Direct OEM Bolt-On Installation: Utilizes factory mounting points for straightforward installation.
- Engineered to Pair Seamlessly with Valvetronic Exhaust Systems
Sound Transformation
- Stock Exhaust + Downpipes: Noticeable increase in volume with stronger turbo presence and improved clarity.
- Valvetronic Exhaust + Downpipes: Maximum transformation — sharper crackles, enhanced turbo whistle, and a more aggressive high-RPM character.
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
Unlock the true potential of your S55-powered M3 or M4 — starting at the source.
Valvetronic Designs part number: BMW.F8X.M2C.M3.M4.FF.400C.BR
Fits: BMW F80 M3 / F82 M4 / F87 M2 Competition (2015-2021)
***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 | BMW.F8X.M2C.M3.M4.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. |