Manley Valve Spring, SPRING-1.580 DOUBLEFrom drag strips to short track and endurance circuits, the Manley NexTek series is engineered for serious racers. NexTek springs resist pressure loss and valve train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high RPM performance. Built to outperform and outlast in real world competition.

it is locked in place with the Varitune locking nut

The main hoop mounts firmly on the strongest part of the car's unibody frame

This product is designed for use where Type-F

A Direct Plug In Wiring Harness Is Included For Ease Of Installation

racing style shocks

GM 19264714

1 EA VRF311XX-XXX Rear Coilover Kit

The foundation of the kit includes our coilover-only lower a-arms featuring caster improvement

The PTFE race is self-lubricating and self-sealing

By utilizing a conventional coil-over

The springs aim to sit level but may need occasional trimming due to varying weights and preferences

UMI's race-inspired 1982-2003 F-Body splined rear sway bar features cutting-edge design and performance