SKU: 67701877207

S58 Downpipe For BMW G80 M3 G82/G83 M4 - ARM Motorsports

Sale price$201.15 Regular price$223.50
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Description

S58 Downpipe For BMW G80 M3 G82/G83 M4 - ARM MotorsportsHIGHLIGHTS Increase Power and Torque Faster Turbo Spool Exotic Exhaust Sound SS304 Stainless Steel PROFILE The ARM S58 Downpipes increase power and torque on your S58 powered BMW while unleashing exotic sounds from your tailpipes. The ARM S58 downpipes are one of, if not the best all around hardware upgrades for the G8X platform. The ARM S58 downpipes improve throttle response throughout the RPM range while stepping up the exhaust note, all without

HIGHLIGHTS

• Increase Power and Torque
• Faster Turbo Spool
• Exotic Exhaust Sound
• SS304 Stainless Steel
  

PROFILE


The ARM S58 Downpipes increase power and torque on your S58-powered BMW while unleashing exotic sounds from your tailpipes.  The ARM S58 downpipes are one of, if not the best all around hardware upgrades for the G8X platform.  The ARM S58 downpipes improve throttle-response throughout the RPM range while stepping up the exhaust note, all without the need to replace the entire catback system on your S58. 

By reducing backpressure on your S58's turbos, you are able to spool faster and hit target boost quicker.  The outcome is more power sooner, resulting in faster 0-60 and 1/4 miles times.  If you are planning to tune your S58, this will benefit your G8X even more, as the backpressure will increase on S58's running higher than OEM boost. Making the ARM S58 downpipes one of the greatest all-around investments for your G8X.   

ENHANCE THE SOUND OF YOUR S58

The ARM S58 Downpipes will increase the overall volume of your exhaust, make the exhaust burbles more audible (even on OEM programming), and make the turbo spool significantly more noticeable.  Check out the links below for some sound clips of our Resonated S58 Catless Downpipes.  



CONSTRUCTION

The ARM S58 Downpipes are built with SS304 stainless steel and backed by the ARM Motorsports Lifetime Warranty.  The ARM S58 Downpipes starts with a 3" diameter precision CNC machined turbo v-band flange


Each downpipe utilizes either a Catless Resonator, or a 200-Cell High-Flow Catalyst.  The standard version is the Catless Resonated option.  If you select the Catless Resonated S58 Downpipes, your downpipes will have our resonators installed to help tune the tone of your S58 for a strong and aggressive sound while maximizing exhaust flow.  The resonators are completely hollow on the inside, there is no obstruction whatsoever. 



If you select the catted S58 Downpipes, the catalysts will replace the resonators found in the the catless/resonated downpipes.  The catted version sounds very similar to the catless variant, but will help with some of the exhaust odor.  The catted S58 downpipes will likely still produce a CEL.  To remove a CEL you will need a tune or a CEL Delete Kit. 



The longer downpipe (front downpipe) in the set utilizes a reinforced flex section.  The flex section is incorporated into the long downpipe to relieve stress on the turbo during aggressive driving.



Both ARM S58 Downpipes then transition to a 2.75" 2-Bolt connection to secure seamlessly to the OEM S58 midpipes, or any aftermarket midpipes that connects to the OEM downpipes.


• ARM S58 Downpipes
• Midpipe Connection Mounting Hardware

 

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



Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 67701877207

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Happy Camper
Omaha, US
★★★★★ 5
Looks Great
Easy to assemble and looks fantastic with a set of pretty cube boxes. A happy purchase to organize my fabric and sewing stash.
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Reviewed in the United States on May 9, 2026
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Karli Pena
Massapequa, US
★★★★★ 5
works and looks great
just as described. great quality
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Reviewed in the United States on April 15, 2026
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Isela sauceda
Dallas, US
★★★★★ 5
Love it!
Sturdy, modern, perfect size. Love it!
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Reviewed in the United States on May 14, 2026
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Reviews by Josh
New York, US
★★★★★ 4
Solid... with a few quirks
Very simple assembly. Was sturdy after all screws were tightened. Be aware that this is particle board so it will bubble up if it gets wet. I learned this the hard way by putting a plant on it that sweat through the pot and damaged it. I have 4 stars because two of the screws stripped in the home because of the cheap wood (I was even being careful not to yet m tighten them too much). Additionally, the screw hole covers were only cheap stickers that started peeling off within 24hrs. Otherwise the product was solid. If you don't mind exposed screw holes then those is a good deal. One other thing to note is that it only comes with 4 square backing pieces to cover 4 of the cubbies, not all 8. I wasn't expecting any but only 4 was a little odd.
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Reviewed in the United States on October 5, 2025
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Cheryl Farmer
Phoenix, US
★★★★★ 5
Worth the money.
Was surprised with the way it was to be positioned, vertically. It’s perfect for where I wanted it. While it was different to my plan, I love it. It’s a good value for the price. It held bigger totes than I thought, it was easy to put together and seems to be well worth what I paid.
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Reviewed in the United States on April 14, 2026

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