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ARM Motorsports Race Exhaust - BMW M3 & M4 (F8x) 2015-2020
HIGHLIGHTS
⢠Up to +20whp / 30wtq
⢠Improved Exhaust Note
⢠304 Stainless Steel
⢠Improved Exhaust Note
⢠304 Stainless Steel
⢠Faster Turbo Spool
 ⢠Fits OEM and Aftermarket Mufflers
PROFILE
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.Ā This S55 Midpipe upgradeĀ delivers improved exhaust flow and an incredible exhaust note due to theĀ resonated 3.5" design. Check out the clips below to hear the ARM S55 Midpipe paired with the ARM S55 Resonated Downpipes.


CONSTRUCTION
Crafted from 304 stainless steel, the ARM S55 Midpipe UpgradeĀ is built to last. Its mandrel-bent tubing ensures smooth, unrestricted flow, while theĀ lightweight design of only 17lbsĀ reduces overall weight of the exhaust system by 15lbs.Ā WhenĀ paired with theĀ ARM S55 Track Exhaust,Ā you shave an incredible 40lbs off compared to the OEM exhaust system.The ARM S55 Single Midpipe starts at the downpipe connections with a precision Y-pipe.Ā This allows you toĀ connect the ARM S55 Midpipe to any downpipe upgrade that fits the OEM S55 Midpipe, including theĀ ARM S55 Catted Downpipes.


This section of the ARM S55 MidpipeĀ includes a 4.5" resonator toĀ tune the tone of the exhaust into a deeper, more desirable range, as the S55 is notorious for having a high-pitched, raspy exhaust note.Ā Paired with theĀ ARM S55 Catted Downpipes, the ARM S55 Midpipe will make your F8X one of the best sounding on the road.Ā Ā 


Due to the larger size of the ARM S55 Midpipe, the OEM under-brace cannot be utilized. To address this, the ARMĀ S55 MidpipeĀ includes a specially designed under-braceĀ that is specifically engineered to fit with the larger midpipe.Ā Ā The under brace included in the ARM S55 Midpipe Kit is designed withĀ precision and manufactured from 6061 aluminum to ensure strength, durability, and a perfect fit, while keeping the weight to a minimum.Ā Ā 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.

Ā
IN THE BOX
ā¢Ā ARMĀ S55 Midpipe
ā¢Ā CNC Machined Brace
⢠5x Exhaust Clamps
ā¢Ā CNC Machined Brace
⢠5x Exhaust Clamps
Ā
FITMENT GUIDE
The ARM S55 Midpipe Upgrade will fit any downpipes that connect to the OEM midpipes.
| Make | Model | Submodel | Engine |
|---|---|---|---|
| BMW | F80 | M3 | S55 3.0L |
| BMW | F82 | M4 | S55 3.0L |
| BMW | F83 | M4 | S55 3.0L |
Product Information
Product Information
Shipping & Returns
Shipping & Returns







ARM Motorsports Race Exhaust - BMW M3 & M4 (F8x) 2015-2020
ARM Motorsports Race Exhaust - BMW M3 & M4 (F8x) 2015-2020
HIGHLIGHTS
⢠Up to +20whp / 30wtq
⢠Improved Exhaust Note
⢠304 Stainless Steel
⢠Improved Exhaust Note
⢠304 Stainless Steel
⢠Faster Turbo Spool
 ⢠Fits OEM and Aftermarket Mufflers
PROFILE
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.Ā This S55 Midpipe upgradeĀ delivers improved exhaust flow and an incredible exhaust note due to theĀ resonated 3.5" design. Check out the clips below to hear the ARM S55 Midpipe paired with the ARM S55 Resonated Downpipes.


CONSTRUCTION
Crafted from 304 stainless steel, the ARM S55 Midpipe UpgradeĀ is built to last. Its mandrel-bent tubing ensures smooth, unrestricted flow, while theĀ lightweight design of only 17lbsĀ reduces overall weight of the exhaust system by 15lbs.Ā WhenĀ paired with theĀ ARM S55 Track Exhaust,Ā you shave an incredible 40lbs off compared to the OEM exhaust system.The ARM S55 Single Midpipe starts at the downpipe connections with a precision Y-pipe.Ā This allows you toĀ connect the ARM S55 Midpipe to any downpipe upgrade that fits the OEM S55 Midpipe, including theĀ ARM S55 Catted Downpipes.


This section of the ARM S55 MidpipeĀ includes a 4.5" resonator toĀ tune the tone of the exhaust into a deeper, more desirable range, as the S55 is notorious for having a high-pitched, raspy exhaust note.Ā Paired with theĀ ARM S55 Catted Downpipes, the ARM S55 Midpipe will make your F8X one of the best sounding on the road.Ā Ā 


Due to the larger size of the ARM S55 Midpipe, the OEM under-brace cannot be utilized. To address this, the ARMĀ S55 MidpipeĀ includes a specially designed under-braceĀ that is specifically engineered to fit with the larger midpipe.Ā Ā The under brace included in the ARM S55 Midpipe Kit is designed withĀ precision and manufactured from 6061 aluminum to ensure strength, durability, and a perfect fit, while keeping the weight to a minimum.Ā Ā 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.

Ā
IN THE BOX
ā¢Ā ARMĀ S55 Midpipe
ā¢Ā CNC Machined Brace
⢠5x Exhaust Clamps
ā¢Ā CNC Machined Brace
⢠5x Exhaust Clamps
Ā
FITMENT GUIDE
The ARM S55 Midpipe Upgrade will fit any downpipes that connect to the OEM midpipes.
| Make | Model | Submodel | Engine |
|---|---|---|---|
| BMW | F80 | M3 | S55 3.0L |
| BMW | F82 | M4 | S55 3.0L |
| BMW | F83 | M4 | S55 3.0L |
Select Add Catted Downpipes?
Select Add Single Exit Track Exhaust?
Select Add Dual Exit Race Exhaust?
From $226.45
Original: $647.00
-65%ARM Motorsports Race Exhaust - BMW M3 & M4 (F8x) 2015-2020ā
$647.00
$226.45Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
HIGHLIGHTS
⢠Up to +20whp / 30wtq
⢠Improved Exhaust Note
⢠304 Stainless Steel
⢠Improved Exhaust Note
⢠304 Stainless Steel
⢠Faster Turbo Spool
 ⢠Fits OEM and Aftermarket Mufflers
PROFILE
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.Ā This S55 Midpipe upgradeĀ delivers improved exhaust flow and an incredible exhaust note due to theĀ resonated 3.5" design. Check out the clips below to hear the ARM S55 Midpipe paired with the ARM S55 Resonated Downpipes.


CONSTRUCTION
Crafted from 304 stainless steel, the ARM S55 Midpipe UpgradeĀ is built to last. Its mandrel-bent tubing ensures smooth, unrestricted flow, while theĀ lightweight design of only 17lbsĀ reduces overall weight of the exhaust system by 15lbs.Ā WhenĀ paired with theĀ ARM S55 Track Exhaust,Ā you shave an incredible 40lbs off compared to the OEM exhaust system.The ARM S55 Single Midpipe starts at the downpipe connections with a precision Y-pipe.Ā This allows you toĀ connect the ARM S55 Midpipe to any downpipe upgrade that fits the OEM S55 Midpipe, including theĀ ARM S55 Catted Downpipes.


This section of the ARM S55 MidpipeĀ includes a 4.5" resonator toĀ tune the tone of the exhaust into a deeper, more desirable range, as the S55 is notorious for having a high-pitched, raspy exhaust note.Ā Paired with theĀ ARM S55 Catted Downpipes, the ARM S55 Midpipe will make your F8X one of the best sounding on the road.Ā Ā 


Due to the larger size of the ARM S55 Midpipe, the OEM under-brace cannot be utilized. To address this, the ARMĀ S55 MidpipeĀ includes a specially designed under-braceĀ that is specifically engineered to fit with the larger midpipe.Ā Ā The under brace included in the ARM S55 Midpipe Kit is designed withĀ precision and manufactured from 6061 aluminum to ensure strength, durability, and a perfect fit, while keeping the weight to a minimum.Ā Ā 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.

Ā
IN THE BOX
ā¢Ā ARMĀ S55 Midpipe
ā¢Ā CNC Machined Brace
⢠5x Exhaust Clamps
ā¢Ā CNC Machined Brace
⢠5x Exhaust Clamps
Ā
FITMENT GUIDE
The ARM S55 Midpipe Upgrade will fit any downpipes that connect to the OEM midpipes.
| Make | Model | Submodel | Engine |
|---|---|---|---|
| BMW | F80 | M3 | S55 3.0L |
| BMW | F82 | M4 | S55 3.0L |
| BMW | F83 | M4 | S55 3.0L |
























