6 Inch B58 Downpipe for Supra 3.0T & BMW M240i, M340i, 340i, 440i, M440i, 540i, 640i, 740i, 840i, X5, Z4 Select one:Catless the 1/8" gauge port on

the 1/8" gauge port on your fuel regulator

Elevate the performance of your 2011-2016 Ford F250 or F350 Powerstroke 6

oiled cotton media engineered to have the most improved airflow possible and still capture contaminants while increasing horsepower

ensuring an even and stable surface to lift your BMW up from

If you're running E85 or ethanol mixes in your VR30DDTT powered Infiniti

6 Inch B58 Downpipe for Supra 3.0T & BMW M240i, M340i, 340i, 440i, M440i, 540i, 640i, 740i, 840i, X5, Z4 Select one:Catless the 1/8" gauge port onThe ARM 6" 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 to the ARM 6" B58 Downpipe unlocks power, improves turbo spool, allows you to safely run stage 2+ tuning, all while improving the sound of your B58 powered BMW. The ARM