Feature●INCLUDES (2) 3 in. collector flange rings, (2) 3 in. collector gaskets, (6) 3/8-16 x 1 1/4 in. bolts, (6) 3/8 in. lock washers, & (6) 3/8-16 hex head nuts●COLLECTOR FLANGE RINGS WONT BEND OR DISTORT when bolts are tightened●2 FLANGES PER PACKAGE with other sizes available separately●MUST HAVE KIT when building or rebuilding custom headers and exhaust●MADE FROM 3/8" thick steel for a leak-free sealDescription