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JET Pulley Set

JET Pulley Set
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The JET Underdrive Pulley Set regains lost horsepower and mileage by reducing the drag placed on the engine to drive accessories such as the air conditioning compressor, the power steering pump and the water pump. The JET Pulleys slow down these accessories to allow the engine to turn with less effort with no adverse effect on the operation of A/C, power steering, charging or cooling systems. Installation consists of simple bolt-on replacement of the stock pulleys. Kits include pulleys, hardware, complete instructions and part number for new serpentine belt (most kits will require use of smaller size belt).
The JET under drive Pulleys add horsepower by reducing the drag placed on the engine to drive the accessories such as the air conditioning, power steering, and water pump. In an effort to increase horsepower the JET Pulleys slow down these accessories to allow the engine to turn with less effort. The JET pulleys have no adverse effect on the operation of A/C, power steering, charging, or cooling systems and installation is simple and straight forward.
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Product Reviews
4 out of 5 stars jet under drive pulley set
Review for: Underdrive Power Pulley
From rising sun, md Reviewer: From A Customer   Own this product - Yes
--this was installed on a 2003 gmc sonoma w/ zr2 package.
no new hardware was needed except for a new belt. took about 2.5 hrs to install but have not drove enough to notice a diffrence in mpg. can tell a small diffrence in hp gain
4 out of 5 stars Power Saver
Review for: Underdrive Power Pulley
From Fort Hood Reviewer: From A Customer   Own this product - No
It Saved gas and also performed better
5 out of 5 stars underdrive power pulleys
Review for: Underdrive Power Pulley
From Scranton, Ar Reviewer: From A Customer   Own this product - Yes
I think it is a realy great product because it ups your horsepower
4 out of 5 stars Lots of power!!!!!
Review for: Underdrive Power Pulley
From Monterrey, Mexico Reviewer: Jose Ygnacio Aranda Suarez   Own this product - Yes
The pulleys were easy to install. You can really see all of the real power that your motor is producing when you drive the truck. The only problem is the low charge of the generator at idle.
5 out of 5 stars CRANK IT BABY!!
Review for: Underdrive Power Pulley
From Wisconsin Reviewer: From A Customer   Own this product - Yes
Big HP gain from this product. Hard to install. Need air gun for altenator pulley for removal. Still worth the money. Cool whining sound at high rpm's.
5 out of 5 stars power pulleys
Review for: Underdrive Power Pulley
From USA Reviewer: Phillip Brandt   Own this product - Yes
The power pulleys work great, i never took my s10 to the 1/4 mile yet to see what it runs.... but when i put them on i can deffinetly tell a big difference in performance
5 out of 5 stars 1/4 mile E/T 15.03
Review for: Underdrive Power Pulley
From Norfolk, VA Reviewer: From A Customer   Own this product - Yes
I put a set of pulleys on my S-Dime 4.3L and went from 17.13 in the 1/4 mile to 15.03 in the 1/4 mile. Guy, look this is an upgrade that will just cost you about $100 so for 2 sec down the track this little upgrade is worth it. At the time I put the pullys on that is all I did was pulleys and a K&N filter. 2003 S-Dime sparking/dragging door slamming
Some of the reviews may have been edited by our moderators in order to comply with our review guidelines.