{"product_id":"flowmaster-73-74-gm-c10-c20-american-thunder-header-back-exhaust-system","title":"Flowmaster 73-74 GM C10\/C20 American Thunder Header-Back Exhaust System","description":"This American Thunder exhaust system was specially designed for 1973-1974 Chevrolet and GMC C10 and C15 1\/2 ton and 3\/4 ton 2wd trucks and is perfect for the person looking for moderate to aggressive interior and exterior sound levels. The Crossmember-Back exhaust system comes complete with a built-in H-pipe crossover, all mandrel-bent 2.50-inch aluminized steel tubing, a pair of Super 44 Series performance mufflers and your choice of tailpipe exits. Either dual out rear under the bumper for a muscular look or dual out the sides behind the rear tires for that classic truck look. The system includes all hardware necessary for installation and is designed to accommodate both long and short wheelbases, with either an automatic or manual transmission and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by our 3-year Limited Warranty. Notes: Does Not include exhaust tips, header reducer cones or downpipes for factory manifolds.\nFits 1973-1974 Chevrolet and GMC C10, C20 2wd with V8 engines.\nDoes not include downpipes for factory manifolds or header reducers.\n\u003cul\u003e\n  \u003cli\u003eDoes Not Include Header Reducers or Downpipes for Factory Manifolds\u003c\/li\u003e\n  \u003cli\u003eSuper 44 Series Mufflers for Deep Powerful Sound\u003c\/li\u003e\n  \u003cli\u003eIncludes Hangers and Hardware for Installation\u003c\/li\u003e\n  \u003cli\u003eMandrel-bent 16-gauge Aluminized Steel Tubing\u003c\/li\u003e\n  \u003cli\u003eAggressive to Moderate Exterior Exhaust Tone\u003c\/li\u003e\n  \u003cli\u003eCrossmember-Back True Dual Exhaust System\u003c\/li\u003e\n  \u003cli\u003eH-pipe Crossover for Maximum Power\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1973 Chevrolet C10 Pickup\u003cbr\u003e\n1973 Chevrolet C20 Pickup\u003cbr\u003e\n1973 GMC C15\/C1500 Pickup\u003cbr\u003e\n1973 GMC C25\/C2500 Pickup\u003cbr\u003e\n1974 Chevrolet C10 Pickup\u003cbr\u003e\n1974 Chevrolet C20 Pickup\u003cbr\u003e\n1974 GMC C15\/C1500 Pickup\u003cbr\u003e\n1974 GMC C25\/C2500 Pickup\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: false\u003cbr\u003e\nCarb Acknowledgement Required: true\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: N\u003cbr\u003e\nPart Type: automotive\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nUnits Per Sku: 1","brand":"Flowmaster","offers":[{"title":"Default Title","offer_id":49298520932571,"sku":"flo17742","price":1065.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/8559\/1003\/files\/1961d6efcac993fdf835358e841f4dd0L.jpg?v=1789199449","url":"https:\/\/hnbperformance.com\/products\/flowmaster-73-74-gm-c10-c20-american-thunder-header-back-exhaust-system","provider":"Hellnback Offroad \u0026 Performance","version":"1.0","type":"link"}