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  ASP Underdrive Pulley/Harmonic Balancer & Belt Package for 01-04 V6
ASP Underdrive Pulleys & Belt Package for 01-04 V6

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Regular Price $399.99
Sale Price $379.95

Availability: Usually Ships in 24 Hours
Product Code: 00228

Product Information Technical Specs
Product Information
  • Auto Specialties Performance is known for making some of the highest quality pulleys money can buy. ASP is the only company to release an underdrive pulley system for the V6 Mustang. Underdrive pulleys can noticeably increase HP and torque, with absolutely zero drawbacks. The ASP pulley replaces your crank pulley with a high quality, aluminum underdrive pulley. By slowing down your accessory drive belt you free up power. Most V6s pick up 8-10 horsepower and the same amount of torque with this simple modification.

    Key Features:
  • New shorter belt required for installation is included
  • All aluminum pulley/harmonic balancer unit
  • Pick up an honest 10 horsepower and 10 ft/lb of torque!

    Fits 2001-2004 V6 Mustangs

Average Customer Review: 4 of 5 | Total Reviews: 2 Write a review.

  0 of 0 people found the following review helpful:
good service and support July 20, 2011
Reviewer: Brandon M from , New Mexico  
when i got this on time a was happy. after the install i had some problems with the product. i then called to get an answering machine. i left a message and left a number. they called me back first thing in the morning and gave me all the advise stang mods could give me. all the way down to giving me the number to asp. thanks alot stang mods. overal after fixing the problem it really opened up my car.

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  0 of 1 people found the following review helpful:
Dissapointed in Shipping May 10, 2010
Reviewer: Jeff Sebers from Everett, WA United States  
I was hoping to hear that my UDP was being delivered when I recieved an email today. I ordered on the 5th, didn't ship until the 10th.

I appreciate the kit you sell containing everything you need to use the UDP, just a little better communication on shipping would have been nice.

Edit: I recieved an email from StangMods customer service, they appologized for the delay in shipping (there was a delay due to the pulley belts not being in stock). I look forward to using the product and plan on writting a full review once the UDP arrives. Thank you Matt SMCustomer Support.

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Engine > Underdrive Pulleys > 1994-2004 V6