ARP Chromoly 1/2-13 in Thread Bolt - 3.250 in Long - 9/16 in Hex Head - Black Oxide (Set of 5) BUTBB1156901 compact size facilitates easy mounting

compact size facilitates easy mounting

Raised bottom

100 in Oval Port

The outer sleeve that surrounds the conductor assembly is just as impressive

This unique design uses a one piece roto-molded air intake tube/housing that snaps onto the factory lower air box for a quick hassle free installation

ARP Chromoly 1/2-13 in Thread Bolt - 3.250 in Long - 9/16 in Hex Head - Black Oxide (Set of 5) BUTBB1156901 compact size facilitates easy mountingProduct Description: Bolt 1 2 13 in Thread 3. 250 in Long 9 16 in Hex Head Chromoly Black Oxide Universal Set of 5 ARP is the fastener of champions. They say that to be successful you must identify a need and satisfy it. Back in 1968 racing enthusiast Gary Holzapfel saw that many of his friendsa broken engines were caused by fastener failure. At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called