Turner Motorsport

Turner Motorsport Power Pulley Kit - E46 323i/328i

$422.46
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Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! 

Additional Info
Click here for example dyno graph

Click here for installation instructions.

Fits these cars:

MAKE MODEL SUBMODEL ENGINE
BMW E46 323Ci M52 2.5L
BMW E46 323i M52 2.5L
BMW E46 328Ci M52 2.8L
BMW E46 328i M52 2.8L