While the 2015-18 Subaru WRX utilizes a standard crank pulley design, which can easily be switched out with the current GrimmSpeed FA Lightweight Pulley, the 2019-21 WRX is a different story. The OEM pulley design for the newer version incorporates a rear hub into the pulley itself, which gives you

Adjust the amount of boost needed with our aFe POWER Pulleys. By changing the pulley diameter, you can adjust the spin rate of the supercharger, resulting in increased boost and amplified power. The aFe POWER Pulleys are meticulously crafted to achieve a perfect balance of lightweight design and hi

Adjust the amount of boost needed with our aFe POWER Pulleys. By changing the pulley diameter, you can adjust the spin rate of the supercharger, resulting in increased boost and amplified power. The aFe POWER Pulleys are meticulously crafted to achieve a perfect balance of lightweight design and hi

Adjust the amount of boost needed with our aFe POWER Pulleys. By changing the pulley diameter, you can adjust the spin rate of the supercharger, resulting in increased boost and amplified power. The aFe POWER Pulleys are meticulously crafted to achieve a perfect balance of lightweight design and hi

Adjust the amount of boost needed with our aFe POWER Pulleys. By changing the pulley diameter, you can adjust the spin rate of the supercharger, resulting in increased boost and amplified power. The aFe POWER Pulleys are meticulously crafted to achieve a perfect balance of lightweight design and hi

Adjust the amount of boost needed with our aFe POWER Pulleys. By changing the pulley diameter, you can adjust the spin rate of the supercharger, resulting in increased boost and amplified power. The aFe POWER Pulleys are meticulously crafted to achieve a perfect balance of lightweight design and hi

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

If you want your ROTREX supercharger work more efficiently, then it is vital to provide it with ROTREX or KRAFTWERKS pulleys as they will improve your vehicle performance. The supercharger compresses the air into the combustor and the pulley enables its spinning, so the faster the supercharger spin

Pulley Kit by GReddy®. Includes: Alternator Power Steering and Water Pump Pulley. Parasitic drag decreases performance. By installing GReddy's lightweight, blue anodized Duralumin Pulleys for the water pump, power steering and alternator, power loses can be kept to a minimum. Ideal for tuned ...

The Kraftwerks Performance 90mm x 30mm supercharger pulley upgrade is designed to enhance the already impressive BRZ, FRS, FT 86, and AP1 S2000 supercharger kits. You can enjoy more low end torque and horsepower by replacing the supercharger pulley, allowing the supercharger to reach max speed soon

This is a complete bolt on kit engineered for BMW Performance tuning. Uses aircraft grade billet 6061 Hard Coat Anodized Aluminum for the strength and durability. The BMW S65 V8 engine as used in the BMW E9X M3 does not make available all of the horsepower that the engine actually produces. This ...

Power Pulley by aFe. Free up some hidden horsepower with the aFe Power Pulley! The Power Pulley replaces your factory crankshaft pulley. It underdrives your engine's accessories to reduce the parasitic loss, increasing horsepower to the rear wheels without any loss of vehicle functionality. It come

Power Pulley by aFe. Free up some hidden horsepower with the aFe Power Pulley! The Power Pulley replaces your factory crankshaft pulley. It underdrives your engine's accessories to reduce the parasitic loss, increasing horsepower to the rear wheels without any loss of vehicle functionality. It come

Power Pulley by aFe. Free up some hidden horsepower with the aFe Power Pulley! The Power Pulley replaces your factory crankshaft pulley. It underdrives your engine's accessories to reduce the parasitic loss, increasing horsepower to the rear wheels without any loss of vehicle functionality. It come

Greddy Pulley Kit with Belt by GReddy®. Includes: Water-pump, Alternator Pulleys, belt. Parasitic drag decreases performance. By installing GReddy's lightweight, blue anodized Duralumin Pulleys for the water pump, power steering and alternator, power loses can be kept to a minimum. Ideal for ...

Belt for Pulley Kit by GReddy®. Engineered to increase heat-resistance, flexibility and durability, GReddy Extreme Belts reduce the chances of cracking from heat, inconsistent timing from stretching and skipping or snapping. Improvements in materials and construction lead to a more reliable ...

Pulley Kit by GReddy®. Includes: Water Pump, Power Steering and Alternator Pulleys. Parasitic drag decreases performance. By installing GReddy's lightweight, blue anodized Duralumin Pulleys for the water pump, power steering and alternator, power loses can be kept to a minimum. Ideal for tuned ...

Pulley Kit by GReddy®. Includes: Alternator pulley, water pump pulley, tensioner pulley, (2) idler pulley number 1 and (1) Idler pulley number 2. Parasitic drag decreases performance. By installing GReddy's lightweight, blue anodized Duralumin Pulleys for the water pump, power steering and alte

Pulley Kit (13512112) by Greddy®. Includes: Water Pump and Alternator Pulleys. Parasitic drag decreases performance. By installing GReddy's lightweight, blue anodized Duralumin Pulleys for the water pump, power steering and alternator, power loses can be kept to a minimum. Ideal for tuned ...

Pulley Kit by GReddy®. Includes: Water Pump, Power Steering and Alternator Pulleys. Parasitic drag decreases performance. By installing GReddy's lightweight, blue anodized Duralumin Pulleys for the water pump, power steering and alternator, power loses can be kept to a minimum. Ideal for tuned ...

Pulley Kit by GReddy®. Includes: Water Pump and Alternator Pulleys. Parasitic drag decreases performance. By installing GReddy's lightweight, blue anodized Duralumin Pulleys for the water pump, power steering and alternator, power loses can be kept to a minimum. Ideal for tuned engines, these ...

Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensi

Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensi

S2000 95MM PULLEY Features: High quality at an affordable price Expertly made from premium materials Built to match your exact ...

Underdrive Performance Lightweight Crank Pulley for 2009-2015 Nissan Maxima / 2007-2012 Altima 3.5 This pulley requires the use of part number 400344B which is the correct length serepentine belt. STILLEN is proud to release our line of high performance STILLEN Lightweight Standard / Underdrive

Booya! Add a bit of style and function to your engine bay with this simple but elegant and first of it's kind pulley cover, featuring the world famous GrimmSpeed tool tray. This cover mounts securely in place of your plastic factory covers and its asymmetric design compliments the BRZ/FRS/86 engine

Replacement Flanged Cog Idler Pulley Assembly for the Track Pack FT86, S2000 supercharger kits. Features: For the Track Pack FT86, S2000 supercharger kits 30mm Flanged ...

Product Features Underdrive Crank Pulley Billet Aluminum CNC Machined at STILLEN OEM Pulley Weight: 4.72 lbs. STILLEN Pulley Weight: 0.99 lbs. Approximate Underdrive: 20% Shorter Belt Required and Sold Separately (Replacement Belt #400370B) (Dual Throttle Body Engines) Fits RWD ...