Flowmaster American Thunder Exhaust System Height: 15.250 Width: 16.250 Length: 59.750 Weight: 36 Fitment: 1972/GMC/Sprint/Custom Standard Cab Pickup 2-Door/7.4L 7441CC 454Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For Sale Or Use In California^^1972/GMC/Sprint/Custom Standard Cab Pickup 2-Door/7.4L 7439CC 454Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For Sale Or Use In California^^1972/GMC/Sprint/Custom Standard Cab Pickup 2-Door/7.4L 454Cu. In. V8 GAS Naturally Aspirated::Not Legal For Sale Or Use In California^^1972/GMC/Sprint/Custom Standard Cab Pickup 2-Door/6.6L 6588CC 402Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For Sale Or Use In California^^1972/GMC/Sprint/Custom Standard Cab Pickup 2-Door/6.6L 6555CC 400Cu. In. V8 GAS OHV Naturally Aspirated::Not Legal For Sale Or Use In California^^1972/GMC/Sprint/Custom Standard Cab Pickup 2-Door/5.7L 573...