Auto Specialties Performance

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Auto Specialties Performance Overview

Auto Specialties Performance Overview

Auto Specialties underdrive pulley systems increase engine horsepower by reducing the amount of power required to drive external accessories. For example, the alternator, power steering, water pump and air conditioner all rob horsepower from the engine. By replacing factory-sized crank and accessory drive pulleys with a resized pulley, the accessories are slowed, resulting in more horsepower available to drive the rear wheels. Typically, a set of Auto Specialties street pulleys will increase output by 12 to 15 horsepower, resulting in quarter mile time improvements of .2 to .25 seconds. All pulleys are CNC machined from billet steel or aluminum, exceeding factory quality.

339300 from Auto Specialties Performance

Auto Specialties Underdrive Crankshaft Pulleys Crankshaft Pulley - Serpentine - 4-Groove - Aluminum - Nitride - Mitsubishi - Eclipse - 2.0L

Auto Part #: 339300
This Auto Specialties pulley replaces your crankshaft pulley. It turns slower than stock and provides about 15 extra horses--for about 30 minutes of work. Youll also get better mileage and increased accessory life in the bargain. Its made from... more

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Starting At
$120.99

339500 from Auto Specialties Performance

Acura: 1994-98 1.8L VTEC Integra GSR/Integra Type R carbon steel black nitride finish underdrive crankshaft pulley

Auto Part #: 339500
This Auto Specialties pulley your crankshaft pulley. It turns than stock and provides about 15 extra horses--for about 30 minutes of work. Youll also get better mileage and increased accessory life in the bargain. Its made from high grade carbon... more

Check Prices

Starting At
$120.99