Hastings Piston Rings - 4.360 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Plasma Moly - 8-Cylinder 2M692040 Battery Terminal Boot #28457 along with a larger

#28457 along with a larger 4500 style plenum

This new height allowed for larger radius air entries which were optimized using Computational Fluid Dynamics (CFD) software to deliver smoother flow into new fully machined

Or use both together for the ultimate adjustment versatility

CNC machined from solid billet aluminum

2018-2019 Jeep Wrangler Sport

Hastings Piston Rings - 4.360 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Plasma Moly - 8-Cylinder 2M692040 Battery Terminal Boot #28457 along with a largerProduct Description: Piston Rings 4. 360 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Plasma Moly 8 Cylinder For nearly 100 years, Hastings has earned its reputation as a leader in piston ring technology.