Allstar Performance 1-Piece Exhaust Port Block-Off 1/4" Thick Plastic Black - 23 Degree Head Turnlock Mounting Bracket lightweight pump that bolts into

lightweight pump that bolts into many existing hanger assemblies

Features the S-logo Simpson patch

Three programmable

GMC: Sierra 1500 19 - 22

020'' valves might require aftermarket pistons notched for valve clearance

Allstar Performance 1-Piece Exhaust Port Block-Off 1/4" Thick Plastic Black - 23 Degree Head Turnlock Mounting Bracket lightweight pump that bolts intoOne piece design 1 4" thick block off plates seal exhaust ports during engine storage or repairs. Plates protect against moisture, dust and dirt. Sold in pairs. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items