ARM S55 Single Midpipe Upgrade 3.5" Resonated (F8x M3/M4) M4 kw has ***Please note that if you

***Please note that if you have changed your OEM shocks with aftermarket shocks or coilovers

The twin cooler kit replaces the OEM cooler on the right side of the car and adds an extra cooler on the left side

*some devices will not function while another device is attached to the OBD2 port

• Adds up to 10+ Horsepower• Dramatic sound improvement• Super fast install and removal• Improves throttle response• Retains OEM airbox base as a heat shield• Retains OEM cold air ducting• Now available with red or blue filters• Looks great under the hood• Cleanable and reusable filters

During testing

ARM S55 Single Midpipe Upgrade 3.5" Resonated (F8x M3/M4) M4 kw has ***Please note that if youHIGHLIGHTS Up to +20whp 30wtq Improved Exhaust Note 304 Stainless Steel Faster Turbo Spool Fits OEM and Aftermarket Mufflers PROFILE 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