ARM B58 Catless Downpipe 4.5" (Fits 240I 340I 440I 540I 640I 740I M340i) N54 Gildan T-Shirt with our Signature

Gildan T-Shirt with our Signature LS3 BMW E92 digitally printed

• ARM S58 Downpipes• Midpipe Connection Mounting Hardware

these fangs enhance airflow around the front end

• (1) 1/4" Push tube line

-2x2 Carbon fiber weave

ARM B58 Catless Downpipe 4.5" (Fits 240I 340I 440I 540I 640I 740I M340i) N54 Gildan T-Shirt with our SignatureHIGHLIGHTS 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,