ARM Motorsports BMW G80/G82/G83 M3/M4 S58 Midpipes

30-Day Money-Back Guarantee

HIGHLIGHTS

• Exotic Exhaust Sound
• X-Pipe or H-Pipe Design
• Fits OEM Underbody Brace
• 3" Design
• SS304 Stainless Steel
• Saves 15lbs Over OEM

PROFILE

The ARM S58 Midpipe upgrade is designed to unleash the incredible exhaust sounds from your G80 M3/M4. By removing the secondary catalysts and two middle resonators, the ARM S58 Midpipes substantially improve the sound of your S58 powered BMW. Watch the video below to find out more about the differences between the X-Pipe and the H-Pipe.

ENHANCE THE SOUND OF YOUR S58

The ARM S58 Midpipes will not only increase the overall volume of your exhaust and transform the sound into something truly unique from an ordinary G80 M3. The G82 M4 in the video below is equipped with both the ARM S58 Midpipes and ARM S58 Downpipes.

CONSTRUCTION

Alternatively, you can choose to upgrade your S58's crossover pipe with the ARM S58 Crossover Pipe. The ARM S58 Midpipes then transition to the X-Pipe or H-Pipe section of the exhaust via the slip-fit connections on either side.

From the X-Pipe section the ARM S58 Midpipes transition back to the OEM muffler, which allows full use of the OEM exhaust valves. This gives you the freedom to choose between open and closed exhaust flaps, controlling the volume your G80 M3/M4 produces. The ARM S58 Midpipes will secure to the exhaust hanger on the driver's side using a standard exhaust hanger prong.

ARM S58 CROSSOVER PIPE

The ARM S58 Crossover Pipe removes the extra casting material and sound deadening of the OEM S58 crossover pipe, allowing an increase in sound your S58 produces. Pairing the ARM S58 Midpipes with the ARM S58 Downpipes will increase the overall volume of your S58 significantly more than the ARM S58 Crossover Pipe alone.

AXLE BACK ADAPTERS

The ARM S58 Axle Back Adapters are designed to reduce down at the end of the midpipe to fit most aftermarket axle back systems.

IN THE BOX

• 1x ARM S58 Crossover Pipe (Optional)
• 2x Front Midpipe Sections
• 1x X-Pipe/H-Pipe
• 4x Sleeve Clamps

FITMENT GUIDE

The ARM S58 H-Pipe and X-Pipe Midpipes fit the OEM center exit exhaust.

ARM MOTORSPORTS LIFETIME WARRANTY

Backed by the ARM Motorsports Lifetime Warranty against defects in craftsmanship or fitment. See the full warranty terms for details.

Off-road use only: This product is intended for racing vehicles and may be illegal for use on public roads in many states or provinces.