ARP 151-5405 Main Stud Kit for FORD '03 Duratec 2.3L ymm_74 carries a lifetime limited warranty

carries a lifetime limited warranty and is capable of increasing horsepower and torque

which makes them about 1000% longer fatigue life than most main bolts

This spacer is designed for O2 sensors with a 45 degrees angle

3 / 2800 rpm   lb-ft 646

adding this sporty stainless-steel front link pipe set takes the Evolution Line to greater levels

ARP 151-5405 Main Stud Kit for FORD '03 Duratec 2.3L ymm_74 carries a lifetime limited warrantySpecifications Socket Size(s) 12mm 12pt, 4mm Allen Material: 8740 Chromoly Kit Type: Stud Main Bolt Style: 2 Bolt Finish: Black Quantity: Kit Kit Instructions Supported Vehicles: Ford Escape 2005 2008 Focus 2003 2007 Fusion 2006 2010 Galaxy 2003 2010 Ranger 2003 2011