Gen 1 BMW B58 High Pressure Fuel Pump (HPFP) Upgrade Add ethanol content sensor?:Yes causing the unused charge air

causing the unused charge air to vent to the atmosphere giving off the desired "Pshhhh" sound all turbo owners love

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Premium Construction: Intake pipe made from mandrel-bent 6061 aluminum or cast aluminum for smooth

BMW F30 / F31 / F34 335i (2012–2015)

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Gen 1 BMW B58 High Pressure Fuel Pump (HPFP) Upgrade Add ethanol content sensor?:Yes causing the unused charge airUnlock the true potential of your BMW with the Gen 1 B58 High Pressure Fuel Pump (HPFP) Upgrade from Fuel It! This high capacity upgrade replaces your factory HPFP, delivering up to 30% more flow with Stage 1 and an impressive 60% more flow with Stage 2, ensuring your engine performs at its peak. Features Complete Installation Kit: Includes all necessary hardware for a clean, plug and play installation. Performance Options: Select between "Stage 1" or