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BMW G80/G82/G83 M3 / M4 Valved Sport Exhaust System
FULL SYSTEM EQUAL LENGTH (CATBACK) / BRUSHED T304 STAINLESS STEEL / (4) 1X1 CARBON FIBER (4.0 OUTLET)
$3,857.00
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SKU:
BMW.G8X.M3.VSES.BR.RC
In stock
BMW G80/G82/G83 M3 / M4 Valved Sport Exhaust System
Free Shipping to the 48 Contiguous States
$3,857.00
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
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Equal-length design: Balances exhaust pulses for a smoother, higher-frequency tone.
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Single 3.5" mid-section: Optimized flow for improved response and power throughout the rev range.
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Modular by design: Pairs with OEM or aftermarket rear sections; upgrade path to our valved axle-back at any time.
Sound & Control
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With stock downpipes: Noticeably crisper, more engaging tone without drone.
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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.
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No CEL: System is designed to avoid check-engine lights.
Construction & Options
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Materials: T304 stainless steel or ultra-light Grade 5 titanium.
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Weight savings: Up to –57.8 lb (Titanium) or –24.7 lb (Stainless) vs. factory.
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Craftsmanship: Precision TIG welds, fully mandrel-bent tubing, and included cross brace for rigidity.
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Tips: Premium double-wall or single wall tips included.
Valve Integration
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Electronic valve control with included controller for rapid open/close.
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OEM integration available if you prefer factory valve control behavior.
Fitment
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2020+ BMW G80 M3
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2020+ BMW G82 M4 (Coupe)
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2020+ BMW G83 M4 (Convertible)
Installation Notes
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Mid-pipe and axle-back can be installed independently.
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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.
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100% reversible—return to stock at any time.
- CLICK HERE FOR INSTALL GUIDE
Compatibility Notice (V3 Systems)
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V1/V2 components are not compatible with V3.
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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
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Single 3.5" equal-length mid-pipe assembly
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Cross brace
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Optional: Valved axle-back with controller and tips
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Hardware and clamps
Specifications
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Tubing diameter: 3.5" mid-pipe; 2.75" axle-back
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Materials: T304 stainless steel or Grade 5 titanium
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Finish: Brushed (Stainless) or raw/brushed (Titanium)
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Valves: Electronic, with remote controller (OEM integration available)
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
- Brushed T304 stainless steel
- Tubing diameter: 3.5" mid-pipe; 2.75" axle-back
- Valves: Electronic, with remote controller (OEM integration available)
- 57.8 lighter than the OEM system
- Paired With Signature Real Carbon Tips
Add install guide content or connect a dynamic source
Warranty Coverage
All products manufactured by Valvetronic Designs are guaranteed to be free from manufacturing defects in materials and workmanship at the time of sale. A manufacturing defect is defined as any characteristic of the product that arises during the manufacturing process which impairs its usability for the purposes for which it was designed and manufactured.
Products are guaranteed to fit and function as designed on their intended vehicle application, provided the vehicle has not been modified or incurred structural damage. Sound or tone is not a warrantable or returnable issue, as exhaust sound is subjective and not considered a defect.
Warranty Periods
- 304 stainless steel and titanium exhaust tubes and welds carry a Lifetime of Ownership limited warranty against defects in workmanship or material, including penetrating rust.
- Mufflers and resonators carry a 3-year limited warranty against defects in workmanship or material, including penetrating rust.
- Catalysts are warranted to conform to EPA emission testing and OBDII compatibility criteria for 25,000 miles from the date of installation, whichever occurs first.
- Catalytic converter external shells, including end pipes, are warranted against corrosion and defective welding for 5 years or 50,000 miles from the date of installation, whichever occurs first.
- Vacuum pots, electronic remotes, and mechanical valves are covered by a 1-year limited warranty.
- Electronics, including 12V vacuum pumps, RF modules, and controllers, are covered by a 1-year limited warranty.
- Tip finish is covered by a 1-year limited warranty.
Warranty Terms
- Warranty coverage begins on the purchase date and applies only to the original purchaser.
- This warranty is not transferable or assignable at any time.
- Discoloration caused by heat, salt, brine, or other road treatments is not covered.
- Tip finish discoloration or damage caused by heat, chemicals, lack of maintenance, road salt, brine, other road treatments, road debris, or misuse is not covered.
Single 3.5" equal-length mid-pipe assembly, Cross brace, Valved axle-back with controller, and Valvetronic carbon fiber tips
Overall rating: 4.9534883 / 5 from 86 reviews.
AI Generated Review Summary
This BMW G8x M3/M4 Valved Sport Exhaust System enhances the vehicle's performance and sound quality. Customers appreciate the system's smooth installation, high-quality materials, and the ability to control the sound with the valved axle-back. The exhaust system is compatible with various downpipes and offers a refined note without triggering check-engine lights.
Summary topics
- Customer Support (16%): A significant number of customers remarked on the great customer service they received, mentioning it multiple times.
- Exhaust Sound (47%): Many customers loved the sound of the product, describing it as perfect, great, and awesome.
- Exhaust System Performance (16%): Many customers loved the system, considering it the best sounding exhaust system for the G8x M platform.
- Product Quality (10%): Customers expressed satisfaction with the great quality of the product, which was mentioned multiple times in the reviews.
- Installation Ease (11%): Customers raved about the easy installation of the product, praising its smoothness and perfect sound.
Review topics: [].
Review highlights
- "I love this system, sounds great, exactly what i was looking for" —
- "Fitment is perfect and sound very satisfied." —
- "Great quality, fast shipping" —
Reviews
"I love the sound on my car! The carbon fiber tip on the exhaust! The car feel different on a great way!!! Even feels like it runs smoother! I am just in love how my car came out! Thank you so much Valvetronic Designs! This is exactly what I wanted!!! 🙌🏾🤘🏾🤘🏾"
Great exhaust
"Great sounding exhaust. Easy install"
Worked out great. Sounds great.
"Got a SS cat back system. Initially, I had issues with mid-pipe clearance. Had the car sitting in the shop for a few days. Customer service was great in terms of replacing the defective item. However, it is EXTREMELY hard to get a hold of them. With that said, the exhaust sounds great and it's quality item."
M3 G80 (Stock Cats + Full Stainless Catback)
"Got a Valvetronic exhaust on my G80 M3 Comp and honestly it changed the whole car. Stock sound was kinda weak, but now it actually sounds like an M car. Valves open = loud, aggressive, pops nice on downshifts. Valves closed = pretty chill for daily driving, which I like. Fitment was clean, quality feels solid, no issues so far. Cold starts are a bit loud but nothing crazy. Overall, super happy with it. Makes the car way more fun to drive."
Nothing beats this exhaust!
"The service. The packaging. The delivery. The ease of install. Oh, and did I mention the sound! Truly, the best exhaust out there. Full system, titanium. 4 inch exhaust tips. Bad ass."
G80 M3
"Truly sounds amazingly and videos do not give it justice!"
My son has been running
"My son has been running the M4 Comp Valvetronic Full Exhaust System on his car for a few weeks now, and he absolutely loves it. The exhaust note is aggressive when you want it, but what really stands out — and what I appreciate as well — is the valvetronic feature that lets him turn the valves off when a quieter drive is needed. It’s great for daily driving and still awesome when he wants to open it up. Overall, it sounds fantastic, performs well, and the added control makes it a winner for us."
Sounds really good in person
"Sounds really good in person and it wasn’t too hard to install"
Excellent Quality
"When it comes to enhancing your vehicle's performance and sound, performance exhaust mufflers are a must-have. They not only improve the engine's sound but also boost horsepower, torque, and overall efficiency. Purchase two different exhaust system with Valvetronic Design both were worth it. Quick delivery as well."
Q&A
- Would this exhaust provide pops and bangs to 2026 M4 comp??
- Our systems are designed to increase the overall exhaust volume, enhancing the sound of your vehicle. However, it's important to note that they won't directly increase pops or bangs. The frequency and intensity of pops and bangs are primarily influenced by the tune of your vehicle's ECU, which controls fuel and ignition timing. While our system will amplify any existing pops and bangs by making them louder and more pronounced, they won't create new ones. For more pops or bangs, an ECU tune would be necessary.
- Hi, I have bmw M4 2024 with OPF/GPF filter in EUROPE. When i change midpipe where i have OPF/GPF filter now - Will the engine light come on, or is there a solution? Because when I disconnect the opf filter, the light comes on immediately. Thanks
- We have OPF adapters on our midpipe for EU vehicles
- Do you think the midpipe setup alone will fit in an m340i LCI
- No. This only fits m3/m4. You will need to go to our M340 exhaust for your vehicle
- What downpipe do you recommend running with this system for the best sound
- Any downpipe will do!
- Why does my midpipe have a huge dent in it?
- That is for clearance! On lowered cars it would hit speed bumps without the dent
