304 Stainless steel standard style jet boat headers. Single flange with a formed collector & spike. Collector outlet is determined by primary tube size, 2" has a 3.5" outlet & 2 1/8" & 2 1/4" has a 4" outlet. Overall length of the collector is dependent on preference but ranges from 10" long up to 16" so upon order you will receive a call on details.
