2015-18 Mustang GT headers with 1-7/8" primary tubes, 3" diameter catted lead pipes that mate to the factory connection point. Tig welded 304 stainless steel headers with 3/8" thick flanges and 3" diameter slip fit collectors with merge spikes.This system replaces the factory manifolds, and catalytic converters. Stainless Power headers are backed by a 24-Month guarantee on material and workmanship.
