Dirt Defender Gen II Universal Wheel Cover - Neon Yellow Fuel Pressure Gauge Turning the adjustment knob will

Turning the adjustment knob will extend spring cup up to 7/8" to increase or decrease spring pressure

It provides your engine with the largest amount of high-flowing air and delivers the highest power gains in most cases

For use with 3" lap belt

COMP Cams LS Valve Spring removal tool is engineered specifically to work with all GM LS-Type engines

Dirt Defender Gen II Universal Wheel Cover - Neon Yellow Fuel Pressure Gauge Turning the adjustment knob willMultiple colors to choose from! These covers are made of high impact plastic and are made for a universal application. Design allows for the cover to be interchanged between a bead lock and non bead lock wheel. No more digging through stacks of wheel covers to find the right one. Simply keep an extra Dirt Defender as a spare and use it on any 15" wheel. Dirt Defender Gen II Universal Wheel Covers fit Aero, Bassett, MRW, Keiser, Weld and Real wheels