ARM 3.5" Resonated Midpipe Upgrade for BMW S55

Overview

Introducing the ARM Motorsports S55 Single Midpipe Upgrade for the F8X platform, the ultimate solution for S55 enthusiasts seeking to enhance the power and sound from their S55-powered BMW. This S55 Midpipe upgrade delivers improved exhaust flow and an incredible exhaust note due to the resonated 3.5" design. Check out the clips below to hear the ARM S55 Midpipe paired with the ARM S55 Resonated Downpipes.

Details

Highlights

• Up to +20whp / 30wtq
• Improved Exhaust Note
• 304 Stainless Steel
• Faster Turbo Spool
• Fits OEM and Aftermarket Mufflers

Construction

• Crafted from 304 stainless steel, the ARM S55 Midpipe Upgrade is built to last
• ARM S55 Single Midpipe starts at the downpipe connections with a precision Y-pipe
• 4.5" resonator to tune the tone of the exhaust into a deeper, more desirable range, as the S55 is notorious for having a high-pitched, raspy exhaust note
• Connects to single midpipe with a slip-fit connection and then utilizes the two 2.5" pipes included in the ARM S55 Midpipe Upgrade to extend to the OEM rear muffler section, or to the ARM S55 Track Exhaust
• Specially designed under-brace that is specifically

What's in the Box

• ARM S55 Midpipe
• CNC Machined Brace
• 5x Exhaust Clamps

Warranty & Off-Road Use

Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship. The warranty entitles you to a replacement unit.

Fitment

Watch: Video 1, Video 2