2015-2021 BMW F80/F82/F83/F87C M2C / M3 / M4 400 Cell Catted Downpipes

$2,249.99

Fits 2015–2021 BMW M2 (F87), BMW M3 (F80), BMW M4 (F82/F83) · Competition

Ships in 3–7 business days · Free shipping, tracked, anywhere in the US

Not sure it fits? for a fast answer, or text / call (619) 706-9046.

✓ Verified fitment 🔒 Secure checkout 💬 Fitment support

Fits: BMW M3 2015-2018, BMW M2 2019-2021, BMW M4 2015-2020

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

What's Included

Downpipe(s) & Hardware

Installation Notes

OEM Replacement

Specifications

Material: Stainless Steel
Outlet Quantity: 1

Vehicle Fitment Notes

2021 BMW M2 Competition
2020 BMW M2 Competition
2020 BMW M4
2019 BMW M2 Competition
2019 BMW M4
2018 BMW M3
2018 BMW M4
2017 BMW M3
2017 BMW M4
2016 BMW M3
2016 BMW M4
2015 BMW M3
2015 BMW M4

Product Details

Brand: Valvetronic Designs
Part number: BMW.F8X.M2C.M3.M4.FF.400C.BR
Fitment: BMW M3 2015-2018, BMW M2 2019-2021, BMW M4 2015-2020
Trims: Competition
Warranty: Lifetime of Ownership Limited Warranty on Tubes and Welds; 3 Year Limited Warranty on Mufflers and Cats; 1 Year Limited Warranty on Electronics and Tip Finish

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Not sure it fits your car? Contact us before ordering by live chat or call/text (619) 706-9046 and we will confirm fitment for your trim.