ARM B58 Catless Downpipe 4.5" (Fits 240I 340I 440I 540I 640I 740I M340i) N54 Attention: Be sure to select

Attention: Be sure to select the correct intake when ordering

• 2015+ C-Class C400

• ARM S58 Downpipes• Midpipe Connection Mounting Hardware

-2x2 Carbon fiber weave

• (1) 1/4" Push tube line

ARM B58 Catless Downpipe 4.5" (Fits 240I 340I 440I 540I 640I 740I M340i) N54 Attention: Be sure to selectHIGHLIGHTS Increase Power and Torque Faster Turbo Spool Improved Exhaust Sound Safely Flash Stage 2+ Tunes SS304 Stainless Steel PROFILE The ARM B58 Downpipe is one of the foundational upgrades for giving your B58 powered BMW more power, torque, and sound. The stock B58 downpipe comes from the factory with a catalyst that severely restricts exhaust flow, causing excessive backpressure with increased boost. Upgrading your downpipe unlocks power,