Steeda Underdrive Pulleys for all 2005, 2006, 2007, 2008, 2009 and 2010 GT Mustangs.Steeda is the leader in underdrive pulley design for the 4.6L engines. Steeda was the first to achieve SFI approval on our underdrive pulleys for all 4.6L engines. Steeda's underdrive pulleys are the only pulleys engineered through our unique partnership in Ford's technology transfer program to have the proper torsional vibration dampening characteristics for your 4.6L engine. No other manufacturer can make this claim!
Steeda's underdrive pulleys slow down accessory speed by about 25%. This reduces parasitic drag on the engine and frees up horsepower. Not only will you witness an increase in horsepower, but also improved gas mileage. Underdrive pulleys reduce the load on the engine and allow more power to go directly to the wheels. You can expect an increase of up to 10 horsepower. Get back the horsepower and torque your belt driven accessories steal and start enjoying better performance and gas mileage today!
- Tuned to the proper frequency of the 4.6L engine
- Smooths out engine vibration
- Reduced accessory parasitic drag
- Increased rear wheel horsepower
- Increased gas mileage
Unlike other manufacturers and their claims of state-of-the-art processes, Steeda uses the latest technology directly from OE sources. Steeda doesn't use a cheap piggyback design like their competitors. The Steeda crank pulley features a one-piece nodular iron, injection molded rubber design. Special rubber materials were used for their ability to absorb the torsional vibrations and their ability to withstand underhood temperatures. Steeda has tested all their competitors underdrive pulleys and none are as precisely tuned as Steeda's underdrive pulleys.
Steeda underdrive pulleys are manufactured under ISO/TS16949, QS-9000 and ISO 9001 manufacturing certifications. Steeda worked directly with Ford to properly develop the best underdrive pulley set available. When you buy Steeda, you know you're getting high quality parts that will deliver maximum performance and durability. Order your 2005-2010 Mustang GT Steeda Underdrive Pulleys today.
Product ReviewsWrite a review
How much for installation of the pulleys? Thank you
Unfortunately, we no longer do installations. We're recommending InTune Autoworks, which is directly across the street from our facility. You can give them a call to get a quote.
Date published: 2015-04-14
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By Bill Tumas: We’re here with a set of Steeda Underdrive Pulleys fitting your 2005 to 2010 Mustang GT. Underdrive pulleys have always been a great way to free up some horsepower because they reduce parasitic drag on your engine. Steeda was the first one to offer an SFI- approved underdrive pulley set for the 2005 through 2010 Mustang with the 4.6-liter three-valve engine. The kit includes both pulleys and it's going to be a full replacement bolt-on damper as opposed to a step-on pulley. The kit has everything you need for installation, and it's a great way to add 5 to 10 extra horsepower to your '05 through '10 Mustang. Steeda worked really closely with Ford on their harmonics on these pulleys to make sure when you add them, you get no additional vibration.