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Increased Knock/Detonation Resistance
Exhaust valve integration into OEM valve connections
we are bringing the valved capability to the E46 M3 platform
Fits OEM# 099-500-05-01 / 099-500-53-03 / 099-500–59-03
ARM BMW S55 MIDPIPE UPGRADE - 3.5" RESONATED (F8x M3/M4) mercedes benz Increased Knock/Detonation ResistanceHIGHLIGHTS 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
