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.
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.
Electronic valve control with included controller for rapid open/close.
OEM integration available if you prefer factory valve control behavior.
Single 3.5″ equal-length mid-pipe assembly
Cross brace
Optional: Valved axle-back with controller and tips
Hardware and clamps
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.
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.
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.
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.
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.
Electronic valve control with included controller for rapid open/close.
OEM integration available if you prefer factory valve control behavior.
What’s Included
Single 3.5″ equal-length mid-pipe assembly
Cross brace
Optional: Valved axle-back with controller and tips
Hardware and clamps
Installation Notes
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.
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.
Features and Components
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.
Fits
| Weight | 70 lbs |
|---|---|
| Dimensions | 52 × 26 × 13 in |
| Configuration | Axleback, Equal length midpipe (Select no tips), Full system equal length (catback) |
| Material | |
| Tip Color | Black (3.5" Outlet), Brushed (3.5" Outlet), Burnt Titanium (3.5" Outlet), Carbon Fiber (4.0" Outlet), Forged Carbon Fiber (3.5" Outlet), No Exhaust tips (Midpipe), Raw Burnt Titanium (4" outlet) |
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