Availability
On Sale
Crown Automotive exhaust check valves prevent exhaust from forcing its way back through the air injection system, which would damage the pump and other components. If your original parts are bad, they will be unable to sense the increase in the intake manifold vacuum and may cause damage to the cylinder head, pistons, and cylinder bores.
Not Yet Reviewed
$26.99
$24.29
On Sale
APR R1 diverter valves are a critical performance upgrade recommended at all stages of performance, as they replace failure-prone factory units. They're designed to withstand extreme boost pressures at the highest levels of performance, while offering lightning fast response. Unlike piston-based units that can stick and bind in the winter, APR R1s are virtually maintenance-free. APR R1 diverter valves: designed to be the last DV upgrade your engine will ever need! Features and benefits: * Friction-free, diaphragm-based design * No greasing or O-ring replacements common with other units * Constructed from CNC-machined billet aluminum * High-temperature Nomex-reinforced diaphragm
Not Yet Reviewed
$249.95
$224.95
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
