The JET Underdrive 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.

Auto Specialties underdrive pulley systems increase engine horsepower by reducing the amount of power required to drive external engine 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. All pulleys are manufactured from billet steel or aluminum, exceeding factory quality.

Installation: Simply remove the belt, then unbolt the factory pulleys. Install the underdrive pulleys in place of the factory pulleys that have been removed. Re-install the factory belt or the appropriate new belt if another size is specified in the instructions. Requires only simple hand tools and takes 45 minutes to an hour. 

Built from aircraft-quality computer machined steel or aluminum alloy, these popular underdrive accessory pulley kits have become one of the most sought after bolt-on's available for today's cars and trucks. By reducing the unnecessary speed of the accessories, these underdrive pulleys free up an average of 8-15 horsepower while retaining full cooling and charging characteristics.

Power & Amp Series Pulley Sets increase horsepower by reducing accessory drag. 11 H.P. increase at rear wheel! Designed for vehicles with high amperage needs. Excellent for towing and heavy stop-and-go driving. Precision CNC machined to run perfectly true.

Aluminum pieces are CNC machined from 6061-T6 billet aluminum for extra strength and wear. Hand polished and finished with No Polishing clear powdercoat.Steel pieces are machined from high carbon billet steel and coated with iron phosphate then covered with high gloss black polyester Powedercoat for maximum rust prevention.

Performance Series Pulley Sets increase horsepower by reducing accessory drag. 12.5 horsepower increase at the rear wheels is typical. Eliminates belt throwing. Designed for normal street driving. Precision CNC machined to run perfectly true.

Aluminum sets are CNC machined from 6061-T6 billet aluminum for extra strength and wear. Hand polished and finished with No Polishing clear powdercoat.

If you're looking for a quick and easy way to gain up to 10 hp from your 1993-1997 LT1-powered Camaro/Firebird or 1992-1996 LT1-powered Corvette, SLP offers a thermostat to lower engine operating temperatures, while increasing thermal efficiency and your engine's performance in the process. Lowering your engine's operating temperature will not only increase performance, it will add reliability and longer engine life by decreasing the stress caused by heat fatigue. This thermostat will make a performance difference on even a stock engine. SLP's thermostat is an OEM quality bolt-on piece. It includes hardware for an easy installation. NOT legal for use on pollution controlled motor vehicles. 

Consistent control of engine temperature allows an engine to operate at its peak horsepower - no matter what the driving conditions. The factory thermostat simply cycles open and closed. This reduces cooling efficiency in any engine. With the JET Low Temp Stat you get consistent engine cooling and increased horsepower by reducing engine temperature. Constructed of stainless steel the JET Thermostat offers a lifetime warranty!

Installation: Directly replaces the factory thermostat. Most installations take around 30-60 minutes depending on experience.

Part Number	Description	Price	Buy
JET-10174	JET 180 Degree Low Temperature Thermostat	$15.99

A Hypertech PowerStat low-temp thermostat improves performance in two ways: first by increasing the mass flow rate of intake air and second by reducing the engine's tendency to detonate.

Installation: Exact replacement of stock thermostat. Installs like any other thermostat.

Part Number	Description	Price	Buy
HYPR-1008	Hypertech 160 Degree Thermostat	$17.99
HYPR-1022	Hypertech 180 Degree Thermostat	$17.99

Installation: Oil filter will directly replace a stock oil filter element.