Kraftwerks 159-17-1015 Supercharger Pulley Upgrade Kit 15 PSI Polaris RZR XP 1000

The Kraftwerks 159-17-1015 is a high-performance 15 PSI pulley upgrade kit designed to enhance the power output of supercharged Polaris RZR XP 1000 and XP4 1000 models. This upgrade kit is engineered to increase boost pressure from the factory supercharger setup, delivering substantial horsepower gains for off-road enthusiasts seeking maximum performance.

Key Features:

• 15 PSI boost upgrade for existing Kraftwerks supercharger systems
• Includes 75mm supercharger pulley and 115mm crank pulley
• Complete kit with belt and necessary gaskets
• Black anodized billet aluminum pulley construction
• Capable of producing 200+ horsepower depending on engine build
• 6-groove serpentine pulley design
• 2.559-inch pulley outside diameter

Important Installation Notes:

• Requires upgraded clutch, springs, and weights for proper operation
• Recommended upgrades include: 1000cc injectors, aftermarket head studs, forged pistons, upgraded rods and crankshaft, 3-bar MAP sensor, and 2.5-inch or larger exhaust collector
• Designed for use with existing Kraftwerks supercharger systems only

This performance upgrade kit maximizes the potential of the Rotrex traction-drive supercharger system, providing broad and usable power gains across the entire powerband. Perfect for racers and serious off-road enthusiasts looking to extract maximum performance from their supercharged RZR.