BMW G80/G82/G83 M3 / M4 Valved Sport Exhaust System
FULL SYSTEM EQUAL LENGTH (CATBACK) / BRUSHED T304 STAINLESS STEEL / (4) BRUSHED STEEL (3.5 OUTLET)
Sale price
$3,890.00
Regular price
$5,941.00
Skip to product information
SKU:
BMW.G8X.M3.VSES.BR.BRSH
BMW G80/G82/G83 M3 / M4 Valved Sport Exhaust System
Free Shipping to the 48 Contiguous States
Sale price
$3,890.00
Regular price
$5,941.00
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
-
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)
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 Valvetronic Designs Brushed Single Wall Tips
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.
FULL WARRANTY POLICY CAN BE FOUND HERE
Fits: 2021-2026 BMW M3, M4
Single 3.5" equal-length mid-pipe assembly, Cross brace, Valved axle-back with controller, and brushed Valvetronic tips
