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ARP header bolt kit for .725–.850 exhaust collector flanges. This kit provides purpose-built flange fasteners sized to fit collector flanges in the .725 to .850 range, giving a clear hardware solution for attaching headers and exhaust collectors. It’s offered as a complete bolt kit for installers who need correct flange fasteners without guessing sizes.
ARP Exhaust collector .725-.850 flange bolt kit
