NPR American V8 Engine Ring Series Piston Ring Set - 4.145 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 411997 giving drivers both a performance

giving drivers both a performance edge and a bold presence on track

Independant tests have demonstrated a typical 25 horsepower gain over the previous Pro1 design

Pinion Support Bolt Kit

Midnight Series

2020 Chevrolet Silverado 2500 HD Double Cab Pickup

NPR American V8 Engine Ring Series Piston Ring Set - 4.145 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 411997 giving drivers both a performanceProduct Description: Piston Rings American V8 Engine Ring Series 4. 145 in Bore 1. 2 x 1. 2 x 3. 0 mm Thick Standard Tension Steel Nitride 8 Cylinder NPR Piston Rings is a world leader in the production of piston rings. A long time supplier for OEM applications, they also produce a line of performance piston rings designed for top tier performance and reliability. With performance piston rings for a wide range of engines, including popular V8's from