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Exposed TIG welds at every seam to maximum weld durability and aggressive looks
ARM 5" or 7" FMIC
the ARM intercooler hoses are 50% larger than the OEM intercooler hoses
Its restrictive plastic design quickly becomes a bottleneck once you begin pushing your setup past the 400whp mark
These bushings stiffen and strengthen the differential mounting points improving the vehicles handling capabilities
BMW S55 MIDPIPE UPGRADE - 3.5" RESONATED b48 Exposed TIG welds at everyHIGHLIGHTS 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