"The most advanced piston package for your engine"

SRP Professional pistons include features used in professional racing such as lightweight forged side relief (FSR) forgings, high quality wrist pins, and precision CNC machined ring grooves and skirts. Additionally all Professional Series pistons include a skirt coating and JE Pro Seal Premium Piston Rings at no additional charge. The included ring set features a 1.2 premium steel top ring, 1.5mm Napier (hooked face) second ring and 3.0mm standard tension oil ring. Every piston is designed and manufactured in the USA at the advanced JE/SRP Pistons manufacturing center. The piston designs were created using 3D computer modeling and tested for strength using Finite Element Analysis (FEA).