SPRNG KIT .610 LIFT EVO 84-99 TC '99-04 5/16 STEM VALVES STEALTH LED FLUSH MOUNT PODS FLOODOPEN TRAIL the optional 1-3/4" end cap

the optional 1-3/4" end cap for a smoother power delivery and the spark arrestor module all give the PC IV substantial versatility and tremendous performance gains

72 Gear teeth for a precise 5° sweep

Harnesses are professionally assembled

Ratcheting design ensures the cap is not over tightened

SPRNG KIT .610 LIFT EVO 84-99 TC '99-04 5/16 STEM VALVES STEALTH LED FLUSH MOUNT PODS FLOODOPEN TRAIL the optional 1-3/4" end capWound from Premium Kobe Super Clean Chrome Silicon Wire. KPMI valve springs are heat treated, stress relieved and shot peened to insure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass and operating rpm.