Engine Valve Spring Seat Camaro both the compression and rebound

both the compression and rebound forces will ultimately provide for a blow-off

LS1 features a flange that accepts a square-bore carburetors

570" OD guide applications

These Y-pipe assemblies use Flowmaster's exclusive D-port technology and can be used with either the factory rear mufflers or with one of our Axle-back exhaust systems

The system has a turndown style dump exit right after the muffler to eliminate the over-axle tailpipe

Engine Valve Spring Seat Camaro both the compression and reboundthese locators use an inboard locating shoulder to center the seat and hold the spring in place. The 4873 features a 1. 300" OD and a . 520" ID.