SKU: 82204811755

BMW G80/G82/G83 M3 / M4 Valved Sport Exhaust System

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Description

BMW G80/G82/G83 M3 / M4 Valved Sport Exhaust SystemBMW G80 M3 G82G83 M4 Exhaust System Single 3. 5" Equal Length Mid Pipe + Optional Valved Axle Back (T304 Stainless or Grade 5 Titanium) Overview The G80 G82 G83 is a phenomenal M carits soundtrack just needs to catch up. Our single 3. 5" equal length mid pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section. Add the Valvetronic Designs valved axle back for even more presence and control. Compatible with OEM


BMW G80 M3 / G82–G83 M4 Exhaust System

Single 3.5" Equal-Length Mid-Pipe + Optional Valved Axle-Back (T304 Stainless or Grade 5 Titanium)

Overview

The G80/G82/G83 is a phenomenal M car—its soundtrack just needs to catch up. Our single 3.5" equal-length mid-pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section. Add the Valvetronic Designs valved axle-back for even more presence and control.

Compatible with OEM downpipes or free-flow front pipes, this system is engineered to deliver a higher-pitch, refined note with zero check-engine lights.

Sound With Free Flow Downpipes:

Sound With Stock Downpipes:

Why It Works

  • Equal-length design: Balances exhaust pulses for a smoother, higher-frequency tone.

  • Single 3.5" mid-section: Optimized flow for improved response and power throughout the rev range.

  • Modular by design: Pairs with OEM or aftermarket rear sections; upgrade path to our valved axle-back at any time.


Sound & Control

  • With stock downpipes: Noticeably crisper, more engaging tone without drone.

  • With our valved axle-back (optional): Quad-chamber muffler and OEM-style valves deliver daily-driver civility closed, and an aggressive, motorsport edge opened—at the touch of a button.

  • No CEL: System is designed to avoid check-engine lights.

Construction & Options

  • Materials: T304 stainless steel or ultra-light Grade 5 titanium.

  • Weight savings: Up to –57.8 lb (Titanium) or –24.7 lb (Stainless) vs. factory.

  • Craftsmanship: Precision TIG welds, fully mandrel-bent tubing, and included cross brace for rigidity.

  • Tips: Premium double-wall or single wall tips included.

Valve Integration

  • Electronic valve control with included controller for rapid open/close.

  • OEM integration available if you prefer factory valve control behavior.


Fitment

  • 2020+ BMW G80 M3

  • 2020+ BMW G82 M4 (Coupe)

  • 2020+ BMW G83 M4 (Convertible)

Installation Notes

  • Mid-pipe and axle-back can be installed independently.

  • When installing only a mid-pipe or axle-back, make the rear-section cut at the second dimple on the OEM pipe to ensure proper fitment.

  • 100% reversible—return to stock at any time.

  • CLICK HERE FOR INSTALL GUIDE

Compatibility Notice (V3 Systems)

  • V1/V2 components are not compatible with V3.

  • The V3 mid-pipe includes additional clearances at the downpipe connection and mid-section; small visible gaps prior to tightening are normal and by design.

What’s Included

  • Single 3.5" equal-length mid-pipe assembly

  • Cross brace

  • Optional: Valved axle-back with controller and tips

  • Hardware and clamps

Specifications

  • Tubing diameter: 3.5" mid-pipe; 2.75" axle-back

  • Materials: T304 stainless steel or Grade 5 titanium

  • Finish: Brushed (Stainless) or raw/brushed (Titanium)

  • Valves: Electronic, with remote controller (OEM integration available)


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: 82204811755

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Jason K
Grantham, US
★★★★★ 3
Capsules Are Too Large and Have a Strong Plastic Smell
Size: 90 Count (Pack of 1)
I’ve purchased this product twice, but the capsule design is a big downside for me. The capsules are very large and difficult to swallow. On top of that, there is a noticeable plastic-like smell from the capsules, which is quite distracting and unpleasant. It makes taking them every day uncomfortable. The product itself may work as intended, but the capsule size and odor seriously affect the overall experience. I wish they would improve the capsule material or offer a smaller or odor-free option. If you are sensitive to smells or have trouble swallowing large capsules, keep this in mind before buying.
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Reviewed in the United States on February 3, 2026
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Backpacker
Omaha, US
★★★★★ 5
Good!
Format: Kindle
I love these books as they are always informative, educational and interesting! Provides the right amount of facts/tidbits - not too little, not too much.
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Reviewed in the United States on June 29, 2024
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H. W.
Port Orchard, US
★★★★★ 5
An Excllent Guide to Ancient China
Format: Kindle
Anyone who has even the slightest interest in ancient Chinese history will find at least part of this book enjoyable. Reasons for as much include dedicated research, engaging prose, and a commitment to ensuring all readers can access this work. This one is not to be missed!
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Reviewed in the United States on June 10, 2023
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Bevan
Boise, US
★★★★★ 4
....limited information about how the average person...
Format: Kindle
Coverage of the earliest period does (of necessity through lack of records?) encompass rather a lot of conjecture and assumptions. There's certainly a good coverage of the period - but it can become rather dry as it cycles through successive rulers. There's limited information about how the average person lived during the time covered. Tended to skim past extended descriptions of fairy tales of ancient beliefs and convictions. The book occasionally reverts to mentions of much later personalities (such as Freud) and comparing them to characters of ancient China!
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Reviewed in the United States on June 19, 2023
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Emily
Dallas, US
★★★★★ 1
Not worth the paper it’s printed on.
Format: Paperback
I can’t say that I was expecting such a slim volume on 10,000 years of Chinese culture to be a work of rigorous scholarship, but I also wasn’t expecting it to be quite *this* dreadful. It is badly written to the point of being unreadable, and it is clear that no one thought to edit the document before publication. I made it about twenty pages in before I had to put it down. The entire thing reads like an Anthropology 101 term paper written by a first semester college freshman who hasn’t quite figured out how to back up claims with evidence yet.
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Reviewed in the United States on May 30, 2026

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