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Our Special on Go Fast Bits Performance Products!

This listing is for GFBI 3 Piece Under-Drive Pulley Kit w/Belts (Crank Alt & P/S) For 04-10 WRX/STi

Part Number 2010

Add a little outback to your classic liftback or give your modern ride an overhaul from down under with performance parts from Go Fast Bits (GFB)! Proudly designed, engineered, and manufactured in Australia, the company’s extensive range of high-quality offerings includes GFB blow-off valves, boost controllers, turbocharger turbine diverter valves, crankshaft pulleys, and more. GFB meticulously crafts every component at its own state-of-the-art CNC manufacturing facility using the highest-grade materials available and tests them to ensure exceptional performance and reliability. Order today and give your vehicle the performance...

It might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM in a second or two saps a measurable amount of torque. GFB Lightweight Pulleys reduce inertia by up to 85 percent, so most of the torque that used to accelerate the pulley can now be applied to the wheels.

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