Universal Type RZ Style Blow Off Valve Purple Top and Purple Lip Drain Bolts Sturdy welded steel

Sturdy welded steel

Dramatically Improves Appearance

Helps stiffen the rear-end suspension of your vehicle to provide a better steering response

Significantly increases your engine's airflow volume

2001-2006 Chevrolet Silverado 2500 HD (Crew Cab 4-Door)

Universal Type RZ Style Blow Off Valve Purple Top and Purple Lip Drain Bolts Sturdy welded steel100% Brand New Items, Never Used Or Installed Universal 40mm Type RZ Style Billet Aluminum Blow Off Valve CNC Machined From Cast And Billet Aluminum Frame With Anodized Finish Opposing Springs Deisng, Allows For Improved Control, Response And Idle Easily Adjustable To Eliminate Compressor Surge And Preventing Premature Boost Leakage, While Increasing Boost Response Between Shifts Holds Up to 30 PSI Boost Pressure; 100 420hp Range Compatible With