ARM Motorsports BMW G80/G82/G83 M3/M4 S58 4.5" Midpipe

30-Day Money-Back Guarantee

HIGHLIGHTS

• Exotic Exhaust Sound
• Massive 4.5" Design
• SS304 Stainless Steel
• Saves 15lbs Over OEM

PROFILE

The ARM S58 4.5" Single Midpipe upgrade is designed to unleash the incredible exhaust sounds from your G8X M3/M4. By removing the secondary catalysts and two middle resonators, the ARM S58 Single Midpipe substantially improves the sound of your S58 - powered BMW.

ENHANCE THE SOUND OF YOUR S58

The ARM S58 4.5" Single Midpipe 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 Single Midpipe and ARM S58 Downpipes.

CONSTRUCTION

The ARM S58 Midpipe is a 4.5" design from the downpipe connection all the way to the rear section where it will reduce to 2.75" to perfectly connect to the OEM muffler section. The ARM S58 Single Midpipe then transitions to the 4.5" Midpipe section of the exhaust via the slip-fit connections. Where the exhaust merges is the heart of the ARM S58 Single Midpipe. The sound waves of each bank of your S58 engine are combined to produce a much deeper and richer exhaust note. The ARM S58 Midpipe will secure to the exhaust hanger on the passenger's side using the OEM style mounting bracket.

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

• 2x ARM Downpipe Gaskets
• 1x ARM Extended Brace
• 2x Front 4.5" Midpipe Sections
• 2x Rear Exhaust Sections
• 5x ARM Clamps

FITMENT GUIDE

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.