ARM S55 3.5" Resonated Single Midpipe Upgrade - F80 M3 | F82 / F83 M4
- Worldwide Shipping Available
- Support Available
NOT FOR SALE IN CA. FOR OFF-ROAD USE ONLY.
Introducing the ARM Motorsports S55 Single Midpipe Upgrade for the F8X platform, the ultimate solution for S55 enthusiasts seeking to enhance the power and sound from their S55-powered BMW. This S55 Midpipe upgrade delivers improved exhaust flow and an incredible exhaust note due to the resonated 3.5" design. Check out the clips below to hear the ARM S55 Midpipe paired with the ARM S55 Resonated Downpipes.
- 304 Stainless Steel

CONSTRUCTION
Crafted from 304 stainless steel, the ARM S55 Midpipe Upgrade is built to last. Its mandrel-bent tubing ensures smooth, unrestricted flow, while the lightweight design of only 17lbs reduces overall weight of the exhaust system by 15lbs. When paired with the ARM S55 Track Exhaust, you shave an incredible 40lbs off compared to the OEM exhaust system.

Due to the larger size of the ARM S55 Midpipe, the OEM under-brace cannot be utilized. To address this, the ARM S55 Midpipe includes a specially designed under-brace that is specifically engineered to fit with the larger midpipe. The under brace included in the ARM S55 Midpipe Kit is designed with precision and manufactured from 6061 aluminum to ensure strength, durability, and a perfect fit, while keeping the weight to a minimum. Installation of the under brace is a simple bolt-on process and mounts directly to the factory mounting points, ensuring a secure and stable fit.

IN THE BOX
• CNC Machined Brace
• 5x Exhaust Clamps
FITMENT GUIDE
Make | Model | Submodel | Engine |
---|---|---|---|
BMW | F80 | M3 | S55 3.0L |
BMW | F82 | M4 | S55 3.0L |
BMW | F83 | M4 | S55 3.0L |
ARM MOTORSPORTS LIFETIME WARRANTY
Orders typically ship in 1-2 business days from our location in Los Angeles, CA. Transit time usually ranges from 3-5 business days, depending on where you are located. Please note that not all of our products are kept on hand and will require some time for production (will commonly be noted in description tab).
We offer worldwide shipping, if you need live outside of North America, shoot us an email and we would be happy to give you a quote!