Flowmaster American Thunder Exhaust System Height: 16.250 Width: 11.250 Length: 58.500 Weight: 57.9 Fitment: 1999/GMC/K1500/Sierra SLT Extended Cab Pickup 3-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 78.0, Not Legal For Sale Or Use In California, w/Dual Catalytic Converters^^1999/GMC/K1500/Sierra SLT Extended Cab Pickup 2-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 78.0, Not Legal For Sale Or Use In California, w/Dual Catalytic Converters^^1999/GMC/K1500/Sierra SLE Extended Cab Pickup 3-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 78.0, Not Legal For Sale Or Use In California, w/Dual Catalytic Converters^^1999/GMC/K1500/Sierra SLE Extended Cab Pickup 2-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 78.0, Not Legal For Sale Or Use In California, w/Dual Catalytic Converters^^1999/GMC/K1500/...