DEI Boom Mat XL Damping Material - 12.5in x 24in x 4mm - 31.5 sq ft - 15 Pack Coilovers This system provides a +16%

This system provides a +16% air-flow increase over stock

This cat-back exhaust system is constructed of 2-1/2 IN - 3 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability

Right Side

Advanced Seal Head K-series Gaskets are stronger than OEM and other brands on the market

2014-2020 GMC Sierra 1500 SLT 2007-2008 GMC Sierra 1500 WT 2007 GMC Sierra 1500 Classic Denali 2007 GMC Sierra 1500 Classic Hybrid 2007 GMC Sierra 1500 Classic SL 2007 GMC Sierra 1500 Classic SLE 2007 GMC Sierra 1500 Classic SLT 2007 GMC Sierra 1500 Classic WT 2007-2008

DEI Boom Mat XL Damping Material - 12.5in x 24in x 4mm - 31.5 sq ft - 15 Pack Coilovers This system provides a +16%Boom Mat Vibration Damping Material is a premium quality damping material providing extreme noise damping for the most demanding commercial and sound competition applications. Interior panels vibrate and generate noise. Boom Mat stops that noise by trapping it between our thick, 4 mil aluminum stiffening top skin and the asphalt free, pure butyl, noise constraining layer. Plus worry free no snag adhesion to any interior surface, vertical or overhead,