1999 GMC K1500 Brands

JET Performance Underdrive Pulley Kits are manufactured from 1-piece billet aluminum. They will give you an additional 10-13 hp by reducing the drag placed your vehicle's engine to drive accessories such as A/C, power steering, and water pumps. The kits will slow down the accessories and will allow the engine to turn with less effort, increasing horsepower, fuel economy, and improving your acceleration. The pulleys will not effect adversely the operation of the accessories! The installation process is quick and simple. Free shipping to all of USA!

Key Features:

• Jet Underdrive Pulleys
• Two Pulleys
• Does Not Come W/ Serpentine Belt

• System Type: Tailpipe
• Tubing Diameter (in): 2.5
• Heat Shield: No
• Mount Type: Yes
• Muffler Part Number: Kit Only
• Exhaust Pipe Bend Type: Assorted
• Exit Position: Dual Side Exit
• Prevent Tailpipe 2.5 in. - Side Exit, 1 Pair - Aluminized Steel
• Single Dual: Dual
• 2WD/4WD: RWD/4WD