STAGE 1 PERFORMANCE UPGRADE TO SUIT BMW X SERIES X1 B48A20M0 B48A20O0 B47C20U0 TURBO DIESEL 2.0L I4This Mace ETC and K&N's air filter have been put together to meet the performance upgrade requirements of BMW X series I4 engines. Mace ETC eliminates the delay that exists between the throttle pedal and the butterfly in the throttle body, re establishing throttle response and bottom end acceleration while improving low torque. There are different performance modes in this ETC that helps you to increase throttle response and improve overall
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STAGE 1 PERFORMANCE UPGRADE TO SUIT BMW X SERIES X1 B48A20M0 B48A20O0 B47C20U0 TURBO DIESEL 2.0L I4