03-07 GM P/U 4.8/5.3L EC/CC-SB 3in Cat Back Wheel Spacers The quietest bearings on the

The quietest bearings on the market are virtually noise-free so you can live with them every day

This insulating characteristic and rapid cooling after hard acceleration reduce heat in the air intake tract when compared to air intakes constructed of aluminum or other metals

allowing more outside air to be pushed into the engine via twin-ducts while also providing structural stiffness to the strut towers

25 in Outlets - 18 x 9

03-07 GM P/U 4.8/5.3L EC/CC-SB 3in Cat Back Wheel Spacers The quietest bearings on theExhaust System Installer Series Cat Back 3 in Diameter Stainless Tip Steel Aluminized Extended Crew Cab GM LS Series GM Fullsize Truck 2003 07 Kit