2-1 Merge Collector, 2.5" Inlet I.D. x 2.5" Outlet O.D., 8.50" Overall Length 1983-pontiac-firebird-esi2278290 the Sonic delivers extreme lateral

the Sonic delivers extreme lateral grip

This allows you to put a 4L60E transmission in your LT1 equipped 1993-1997 F-body

Highly precise (machined to 1/1000th inch) CNC machined T6061 Aluminum bearing shells provide an accurate fit

This allows for excess spindle movement

2-1 Merge Collector, 2.5" Inlet I.D. x 2.5" Outlet O.D., 8.50" Overall Length 1983-pontiac-firebird-esi2278290 the Sonic delivers extreme lateralVibrant Performance Merge Collectors feature complete 16 gauge, 304 Stainless Steel construction, precise fabrication and back purged TIG welds at every seam. Each Vibrant Performance collector is ready to weld straight out of the box with little or no prep required. Sold individually.