NPR American V8 Engine Ring Series Piston Ring Set - 3.937 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder WM324-1 No tuning requiredBD Diesel Performance

No tuning requiredBD Diesel Performance is unique among its peers in that it designs

It does NOT fit aFe POWER Momentum intake systems

making it an ideal fit for Volant

Gauge kit includes 1/8” NPT stainless steel pressure transducer

Aluminum shock mount 1-1/4'' tube

NPR American V8 Engine Ring Series Piston Ring Set - 3.937 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder WM324-1 No tuning requiredBD Diesel PerformanceProduct Description: Piston Rings American V8 Engine Ring Series 3. 937 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