In Northern California? Get this professionally set up & installed!
These federal EPA-compliant 400-cell catted downpipes give your S55-powered M2 Competition, M3 or M4 better exhaust flow, quicker turbo response and more sound without going catless. The kit replaces both restrictive factory downpipes while keeping a catalytic converter behind each turbo.
The 400-cell catalysts open up the exhaust without bringing the smell and harsh sound that normally comes with catless downpipes. Run them with the factory exhaust for more turbo sound and a deeper tone, or pair them with an aftermarket exhaust when you want to hear more of the S55.
Please Note: EPA compliant does not mean CARB legal or 50-state legal. These downpipes are for federally certified vehicles and cannot be sold for vehicles registered in California or other states that require CARB compliance.
Fitment Information
- 2019 BMW M2 Competition F87 3.0L Twin-Turbo S55
- 2020 BMW M2 Competition F87 3.0L Twin-Turbo S55
- 2021 BMW M2 Competition F87 3.0L Twin-Turbo S55
- 2015 BMW M3 F80 3.0L Twin-Turbo S55
- 2016 BMW M3 F80 3.0L Twin-Turbo S55
- 2017 BMW M3 F80 3.0L Twin-Turbo S55
- 2018 BMW M3 F80 3.0L Twin-Turbo S55
- 2015 BMW M4 Coupe F82 3.0L Twin-Turbo S55
- 2016 BMW M4 Coupe F82 3.0L Twin-Turbo S55
- 2017 BMW M4 Coupe F82 3.0L Twin-Turbo S55
- 2018 BMW M4 Coupe F82 3.0L Twin-Turbo S55
- 2019 BMW M4 Coupe F82 3.0L Twin-Turbo S55
- 2020 BMW M4 Coupe F82 3.0L Twin-Turbo S55
- 2015 BMW M4 Convertible F83 3.0L Twin-Turbo S55
- 2016 BMW M4 Convertible F83 3.0L Twin-Turbo S55
- 2017 BMW M4 Convertible F83 3.0L Twin-Turbo S55
- 2018 BMW M4 Convertible F83 3.0L Twin-Turbo S55
- 2019 BMW M4 Convertible F83 3.0L Twin-Turbo S55
- 2020 BMW M4 Convertible F83 3.0L Twin-Turbo S55
Fitment Notes
- Fits standard, Competition Package and CS versions of the F80 M3 and F82/F83 M4 with the S55 engine.
- Fits the F87 M2 Competition and M2 CS with the S55 engine.
- Does not fit the standard F87 M2 powered by the N55 engine.
- This set replaces both factory downpipes and catalytic converters.
- Professional installation is recommended.
Federal EPA Compliant
- Federal EPA-compliant 400-cell catalytic converters
- Designed for vehicles built and registered to Federal EPA emissions standards
- Keeps catalytic converters in place while providing more exhaust flow than the factory downpipes
- Not CARB exempt and not legal for vehicles registered in California
- Not legal for vehicles registered in other states that require CARB-approved replacement catalytic converters
- These are not 50-state-legal downpipes
- Check your state and local emissions requirements before ordering
Specs & Features
- Complete pair of left and right S55 downpipes
- 400-cell high-flow catalytic converter in each downpipe
- High-grade stainless steel construction
- Mandrel-bent tubing with smooth internal transitions
- Reduces exhaust restriction compared to the factory downpipes
- Helps improve turbo response and midrange power delivery
- Adds a deeper exhaust tone and more noticeable turbo sound
- Precision TIG-welded construction
- High-temperature-resistant catalyst cores
- OEM-style oxygen sensor placement
- Direct bolt-on design using the factory mounting locations
- Designed for stock and tuned S55 applications
- Compatible with the factory exhaust and compatible aftermarket exhaust systems
- Part number: BMW.F8X.M2C.M3.M4.FF.400C.BR
What to Expect From the Sound
- Factory Exhaust: More turbo sound with a deeper and clearer exhaust note under acceleration.
- Aftermarket Exhaust: A bigger change in sound with sharper crackles, more turbo whistle and a stronger high-RPM tone.
- The 400-cell catalysts help keep the sound cleaner and cut down on the smell normally associated with catless downpipes.
Warranty
- Catalysts: 25,000-mile limited emissions and OBD-II compatibility warranty
- Catalytic converter shells and connecting pipes: Five-year or 50,000-mile limited warranty against defective welding and corrosion
- Stainless tubing and welds: Limited lifetime-of-ownership warranty against manufacturing defects and penetrating rust
- Warranty coverage applies to the original purchaser and is not transferable
Pairs Well With
- MAD S55 Air Intake – Open up the intake side of the S55 and add more turbo sound to go with the freer-flowing downpipes.
- IRL S55 Charge Pipes – Replace the factory charge pipes with stronger aluminum piping on compatible F8X M2 Competition, M3 and M4 models.
- AWE Exhaust for BMW F80 M3 and F82 M4 – Pair the catted downpipes with a complete catback when you want a much bigger change in the S55 exhaust note. Choose the SwitchPath version if you want valve control.
About Valvetronic Designs
Valvetronic Designs makes exhaust parts for people who want more sound and better flow without making the car miserable to drive every day. These F8X downpipes work with the factory exhaust or a compatible aftermarket system, giving you room to decide how loud you want your S55.
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Ordering from Redline360
Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.
Order updates, tracking and info
Our goal is your complete satisfaction. Upon ordering, you will receive an email confirmation of your order along with your invoice. You will be able to log into our website 24/7 to check on your order at any time. Your order is processed Monday through Friday from 8am to 6pm PST as soon as it is placed. Once your order ships, we will email you a tracking number so you can track your package.
Protect your purchase
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Multiple distribution points ready to serve you!
We ship from multiple locations around the United States so you receive your part as quick as possible. Not every warehouse stocks all the same parts, so the closest warehouse to you that has the part in stock is where your order will ship from. We ship from California, Nevada, Indiana, Michigan, Florida, Texas and Pennsylvania.
Secure Ordering
We take security seriously! We are never exposed to your credit card information, and it's never stored. Credit card transactions go through the credit card processor directly. We also offer various other payment methods such as PayPal, Affirm Financing (Pay over time), Amazon Pay, Apple Pay and more!
Any non CARB compliant items can not ship California. We will notify you if we have to cancel your order.
Some products may be subject to local rules, laws and regulations in certain areas. Always check your local laws to determine legal restrictions. We are not responsible if you buy a product that is not legal in your area.
For items that have free shipping, free shipping only applies to the lower 48 states.
Questions? Contact us.
Actual item may vary from picture
Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.
Order updates, tracking and info
Our goal is your complete satisfaction. Upon ordering, you will receive an email confirmation of your order along with your invoice. You will be able to log into our website 24/7 to check on your order at any time. Your order is processed Monday through Friday from 8am to 6pm PST as soon as it is placed. Once your order ships, we will email you a tracking number so you can track your package.
Protect your purchase
Redline360 offers our customers piece of mind! We have partned with Extend to offer you Extend Product Protection and Extend Shipping Protection. Read about each protection that Extend offers to Redline360 customers!
Multiple distribution points ready to serve you!
We ship from multiple locations around the United States so you receive your part as quick as possible. Not every warehouse stocks all the same parts, so the closest warehouse to you that has the part in stock is where your order will ship from. We ship from California, Nevada, Indiana, Michigan, Florida, Texas and Pennsylvania.
Secure Ordering
We take security seriously! We are never exposed to your credit card information, and it's never stored. Credit card transactions go through the credit card processor directly. We also offer various other payment methods such as PayPal, Affirm Financing (Pay over time), Amazon Pay, Apple Pay and more!
Any non CARB compliant items can not ship California. We will notify you if we have to cancel your order.
Some products may be subject to local rules, laws and regulations in certain areas. Always check your local laws to determine legal restrictions. We are not responsible if you buy a product that is not legal in your area.
For items that have free shipping, free shipping only applies to the lower 48 states.
Questions? Contact us.
Actual item may vary from picture