BMW F80/F82/F83/F87C M2C / M3 / M4 400 Cell Catted Downpipes
$3,251.00
Skip to product information
SKU:
BMW.F8X.M2C.M3.M4.FF.400C.BR
BMW F80/F82/F83/F87C M2C / M3 / M4 400 Cell Catted Downpipes
Free Shipping to the 48 Contiguous States
$3,251.00
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.
📩 Questions or ordering assistance? customerservice@valvetronic.com
- Brushed T304 Stainless Steel
Add install guide content or connect a dynamic source
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.
BMW F80/F82/F83/F87C M2C / M3 / M4 400 Cell Catted Downpipes
