Stainless Steel Valved Axle-Back Exhaust for BMW G87 M2 / G80 M3 / G82–G83 M4 (S58)

Unlock deeper sound, improved flow, and a more dynamic driving experience with the Stainless Steel Valved Axle-Back Exhaust, engineered specifically for the BMW G8X S58 platform. Crafted from premium T304 stainless steel and utilizing factory valve control, this axle-back system delivers the perfect balance between everyday refinement and aggressive exhaust tone on demand.

Designed for performance-minded enthusiasts, this system enhances both auditory feedback and throttle response while maintaining OEM functionality and reliability.

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Key Features

✔ 76mm (3-Inch) Mandrel-Bent Piping

• Reduces backpressure for smoother, more efficient exhaust flow

• Helps unlock additional horsepower and torque

• Improves throttle response and mid-range power

✔ Valved Design (Uses OEM Valves)

• Fully compatible with your factory valve operation

• Quiet mode for cruising; aggressive mode for spirited driving

• Smooth transitions between sound profiles based on drive mode or driver input

✔ Premium T304 Stainless Steel Construction

• Corrosion-resistant, heat-resistant, and built for long-term durability

• Precision TIG-welded for clean visuals and stronger joints

✔ Quad 100mm Exhaust Tips

• Four 4-inch clamp-on tips included

• Fits perfectly in OEM diffuser cutouts

• Adds a bold, sporty rear-end appearance

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Benefits

• Noticeable performance gains from reduced backpressure

• Adjustable exhaust note without sacrificing OEM comfort

• Enhanced overall driving dynamics and sound character

• Perfect upgrade for daily-driven, tuned, or track-use G8X cars

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Fitment

Compatible with all S58-powered G8X models:

• 2023+ BMW G87 M2

• 2021+ BMW G80 M3

• 2021+ BMW G82 M4 (Coupe)

• 2021+ BMW G83 M4 (Convertible)

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FAQs

Is this compatible with all G8X models?
Yes — fits G87 M2, G80 M3, and G82/G83 M4 models equipped with the S58 engine.

Does installation require cutting?

• If paired with aftermarket midpipes: usually no cutting required.

• If connecting to factory midpipes: cutting may be required.

Will this cause a check engine light?
No. This system retains factory valves and does not affect emissions systems.

Should it be professionally installed?
While install is straightforward, professional installation is recommended for perfect fitment.

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⚠️ THIS PRODUCT IS FOR OFF-ROAD USE ONLY