SKU: 71522316076

S58 Midpipe For BMW G80 M3, G82 M4, G83 M4 Including Competition - ARM Motorsports

Sale price$544.95 Regular price$605.50
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

S58 Midpipe For BMW G80 M3, G82 M4, G83 M4 Including Competition - ARM MotorsportsThe ARM S58 Midpipe upgrade is engineered to unlock the aggressive exhaust character of your G80 M3 or G82 M4. By removing the secondary catalytic converters and the two center resonators, this midpipe significantly enhances the sound of your S58 powered BMW. At the same time, it retains the factory muffler, so you can still control the exhaust valveskeeping them closed for a quieter, refined tone or opening them for maximum volume and performance

The ARM S58 Midpipe upgrade is engineered to unlock the aggressive exhaust character of your G80 M3 or G82 M4. By removing the secondary catalytic converters and the two center resonators, this midpipe significantly enhances the sound of your S58-powered BMW. At the same time, it retains the factory muffler, so you can still control the exhaust valves—keeping them closed for a quieter, refined tone or opening them for maximum volume and performance sound.

Enhance the Sound of Your S58

The ARM S58 Midpipe not only increases overall exhaust volume but also transforms the tone into something far more distinctive than a standard G80 M3. It also makes the signature exhaust burbles more noticeable, even with the factory tune.

The G82 M4 featured in the video below is equipped with both the ARM S58 Midpipe and ARM S58 Downpipes. When paired together, the midpipes and downpipes deliver an even louder and more aggressive exhaust note compared to running the midpipe alone.

Highlights

  • Exotic exhaust sound

  • X-pipe design

  • Compatible with OEM underbody brace

  • 3-inch piping design

  • Constructed from SS304 stainless steel

  • Reduces weight by approximately 15 lbs compared to OEM

CONSTRUCTION
The ARM S58 Midpipes are a3" designfrom the downpipe connection all the way to the rear section where it will reduce to 2.75" to perfectly connect to the OEM muffler section. The ARM S58 Midpipes start with a OEM-style 2-Bolt flange which can mate up to either the OEM downpipes, or upgraded downpipes that fit the OEM exhaust. These flanges will accommodate the OEM midpipe gasket perfectly. Alternatively, you can choose to upgrade your S58's crossover pipe with the ARM S58 Crossover Pipe. The optional ARM S58 Crossover Pipe replaces the heavy OEM pipe to open up more sound and saves an additional 4lbs.



The ARM S58 Midpipe then transitions to the X-Pipe section of the exhaust via the slip-fit connections on either side. The X-Pipe is the heart of the ARM S58 Midpipe and is where the magic happens. The sound waves of each bank of your S58 engine are combined to produce a much more exotic and richer exhaust note. The X-Pipe section lives above the OEM brace with ample clearance, there is no need to install a larger brace.

Explore Aftermarket Parts Collection For G8X S58 Vehicles

From the X-Pipe section the ARM S58 Midpipe upgrade transitions back to the OEM muffler, which allows full use of the OEM exhaust valves. This gives you the freedom to choose between open and closed exhaust flaps, controlling the volume your G80 M3/M4 produces. To get a look to match your ARM S58 Midpipe check out the ARM S58 Exhaust Tips. 



The ARM S58 Midpipe will secure to the exhaust hanger on the driver's side using a standard exhaust hanger prong. It is secured to the passenger's side using the OEM style mounting bracket. These help the exhaust from jostling around during aggressive driving.




IN THE BOX

• 1x ARM S58 Crossover Pipe (Optional)
• 2x Front Midpipe Sections
• 1x X-Pipe
• 4x Clamps


FITMENT GUIDE

Make Model Submodel Engine
BMW G80 M3 S58 3.0L
BMW G80 M3 Competition xDrive S58 3.0L
BMW G82 M4 S58 3.0L
BMW G82 M4 Competition xDrive S58 3.0L
BMW G83 M4 S58 3.0L
BMW G83 M4 Competition xDrive S58 3.0L

ARM MOTORSPORTS LIFETIME WARRANTY

Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit.

This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles which may never be used on a public road.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71522316076

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Samson
Birmingham, US
★★★★★ 5
Great Engine and Cabin Air filters
Color: gray
It is an exact match and was like replacement . I am not mechanically inclined and this took less than 5 mins -watched a You Tube video and this product was the exact size and fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
M
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Michael
Waukegan, US
★★★★★ 5
Good product
Color: gray
Nice fit. Easy yo install.
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Reviewed in the United States on March 25, 2026
A
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Amazon Buyer
Port Orchard, US
★★★★★ 4
Exact replacements for ‘25 Forester air/cabin filters
Color: gray
Exact replacement set for ‘25 Subaru Forester. Reasonable cost, quality seems OK. Easy install.
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Reviewed in the United States on May 25, 2026
K
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K Mussat
Cuba, US
★★★★★ 5
Work Great
Color: gray
Works well in my car good quality and the cost is not bad compared to the other brands. Easy to install.
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Reviewed in the United States on April 8, 2026
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ArcTuba
Cuba, US
★★★★★ 5
Dealer wanted $200, Changed them in 5 min
Color: gray
Good quality, saved a lot of money over having a dealer or mechanic change them.
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Reviewed in the United States on May 13, 2026

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