Valvetronic Designs 2021-2025 BMW 3 Series G8x M3 / M4 Valved Sport Exhaust System
or as low as $299.92/mo with Affirm
Available
Construction & Engineering
- Modular by design: Pairs with OEM or aftermarket rear sections; upgrade path to our valved axle-back at any time.
- 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.
- 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.
Specifications
Fitment
| Year | Make | Model | Variant |
|---|---|---|---|
| 2021–2025 | BMW | 3 Series G8x M3 / M4 |
Sound & Video
Installation
VALVETRONIC DESIGNS
Valvetronic Designs 2021-2025 BMW 3 Series G8x M3 / M4 Valved Sport Exhaust System
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.
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