The Fabspeed BMW M3 & M4 Valvetronic Exhaust System offers a superb “plug and play” upgrade to the restrictive and quiet OEM exhaust. Adding a significant increase in tone, volume, and power. We use Helical valves imported directly from the U.K. to eliminate any risk of valve failure that plague many other options on the market with low quality exhaust valves.
High-Performance BMW G80 M3 Exhaust Systems
Elevate your driving experience with the industry-leading BMW G80 M3 Exhaust Systems from Fabspeed. Engineered specifically for the S58 engine, our upgrades optimize exhaust scavenging and eliminate factory-restricted backpressure.
Unlike mass-produced alternatives, every Fabspeed system is hand-crafted in-house at our USA facility. By keeping 100% of our design and fabrication in Pennsylvania, we guarantee elite American craftsmanship. Our master fabricators utilize precision TIG welding and back-purging to create "jewelry-grade" components that deliver both structural integrity and a premium finish.
By utilizing high-quality T304L stainless steel and CNC mandrel-bent tubing, Fabspeed unlocks an aggressive, exotic tone while providing "entity-verified" power gains. Whether you choose a valved system for daily civility or a track-oriented setup, our G80 M3 solutions offer the perfect balance of weight reduction and acoustic perfection. Backed by dyno-proven results and a Lifetime Warranty, Fabspeed makes sure your M3 performs as aggressively as it looks.
Sound:
The Fabspeed Motorsport Valvetronic Exhaust System relieves you of the subtle OEM sound and gives you the volume and tone that’s missing from the factory system. With a slight increase in volume on the throttle and a nice burble at idle, this is the perfect “grand touring” M3/M4 exhaust system. Downshift pops and bangs in sport mode are louder, but not obnoxiously so. This system has no drone at all cruising around town or on the highway.
Features:
- Fits all BMW M3 & M4 (G80/G82) sedan/coupe vehicles including Competition Models worldwide (2021+) (RWD & AWD)
- Constructed from CNC mandrel-bent 14-16 gauge T304L stainless steel
- Laser scanned and CAD designed for perfect OEM fitment using Ametek Handyscan 700
- This cat-back system is emissions legal in all 50 states and the rest of the world (ROW)
- Uses aerospace quality Helical Limited exhaust valves imported from the U.K.
- No CEL (Check Engine Light) guaranteed
- Saves 3lbs / 1.4KGs compared to the factory system
- Includes Deluxe Quad-Style Tips in your choice of finish
- Retains factory valve functionality for “plug and play” installation
- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
NOTE:
- Minor cutting at factory exhaust breakpoint required to install (Reference Dimple Locations on OEM)
Are There Any Specific Exhaust Modifications Recommended For The G80 M3?
To unlock the full potential of the S58 engine, we recommend a tiered approach to BMW G80 M3 exhaust modifications. Every Fabspeed component is hand-crafted in-house in the USA, making sure that our fine craftsmanship and elite American engineering match the high-performance standards of the M Division.
-
Valvetronic Mid-Pipe: Replacing restrictive factory resonators with our high-flow mid-pipe is the best way to achieve a deeper, aggressive tone without a CEL.
-
High-Flow Sport Cats: Our 200-cell HJS Sport Cats significantly reduce backpressure and heat soak. These are hand-TIG welded in-house to guarantee the turbos spool faster for improved response.
-
Valvetronic Rear Section: Essential for versatility, our valved exhaust provides a "tame" mode for commuting and an unrestricted "exotic" scream for spirited driving.
-
T304L Downpipes: For maximum power, our precision-engineered T304L stainless steel downpipes maximize velocity. Made in our Pennsylvania facility, they represent a foundational "trust signal" for high-performance builds.
-
Weight-Reduced Components: By utilizing lightweight, USA-sourced materials, a full Fabspeed system sheds significant weight compared to bulky factory units, enhancing the G80’s power-to-weight ratio.
This Part Fits:
| Years |
Make |
Model |
Chassis |
| 2021+ |
BMW |
M3 / M4 |
G80 / G82 |
