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6 Inch B58 Downpipe for Supra 3.0T & BMW M240i, M340i, 340i, 440i, M440i, 540i, 640i, 740i, 840i, X5, Z4 Select one:Catted Pump Activation Harness PDF Instructions

$163.50

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Pump Activation Harness PDF Instructions

The JBD works with your ECU to increase injector pulse width and fuel pressure as a function of the factory mapping

2021-2023 Jeep Gladiator 3

come from the factory

2019-2024 Dodge Ram 2500 6

6 Inch B58 Downpipe for Supra 3.0T & BMW M240i, M340i, 340i, 440i, M440i, 540i, 640i, 740i, 840i, X5, Z4 Select one:Catted Pump Activation Harness PDF InstructionsThe 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

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