Aluminized Steel 3.0 Inch Cat Back Single Side MBRPGet your Chevrolet GMC Cadillac Suburban Tahoe Yukon Yukon XL Escalade Escalade ESV an MBRP Cat Back Exhaust System. MBRP's Cat Back exhaust systems have multiple benefits, here is why you should consider upgrading your OEM exhaust system for one of ours: Durability: Constructed from heavy gauged aluminized steel, our systems are fully sealed at the seams to help with rust resistance. Aluminized steel is optimal for mild and dry environments. Built to