NPR American V8 Engine Ring Series Piston Ring Set - 4.155 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder GRE7107 2001 - 2015 BMW 320i

2001 - 2015 BMW 320i

Pink high pressure spring (M-55A)comes installed with the lower pressure yellow spring (M-55) also included

NPT solid state pressure transducer (included) provides the best possible measurements with unparalleled resistance to vibration and heat

Driving Gloves

NPR American V8 Engine Ring Series Piston Ring Set - 4.155 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder GRE7107 2001 - 2015 BMW 320iProduct Description: Piston Rings American V8 Engine Ring Series 4. 155 in Bore 1. 5 x 1. 5 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