ZEX Comp Cams Valve Locks - 04 Yukon XL 6.0L LQ4 - ZEX623-16 **CLEARANCE** Porsche 911 997.2 and K24A2 engines dramatically increase

and K24A2 engines dramatically increase both horsepower and torque yet retain complete valvetrain stability and exceptional engine response

these endlinks eliminate flex and compliance associated with original equipment and are engineered to increase sway bar effectiveness

Designed to stand up to the destructive properties of alcohol based fuels

* These clips works perfectly and can be used with modified stock injector pins and clipped into the new RDX clip

NS1-XTR4 kit features an Xtreme pressure plate for the most demanding driver

ZEX Comp Cams Valve Locks - 04 Yukon XL 6.0L LQ4 - ZEX623-16 **CLEARANCE** Porsche 911 997.2 and K24A2 engines dramatically increaseNOTE: THIS IS CLEARANCE ITEM. ALL SALES FINAL.