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Hooker BlackHeart LS SWAP Exhaust Adapter Kit

1975-1987 C10, connects Hooker 8501HKR manifolds to Hooker 2.5" Exhaust Kits

PART# BH13257

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Estimated shipping date: 04/01/2021
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"When connecting Hooker Cast Manifolds to a 2.5"" diameter Hooker exhaust kit, an adapter pipe is required to fill that gap between the end of the manifolds and our Hooker exhaust systems.


  • Designed to connect 8501HKR exhaust manifolds to C10 LS Swap 2.5" exhaust systems
  • 409 Stainless steel construction


Application1975-1987 GM C10/15 2WD pickup
1975-1987 GM C10/20 2WD pickup
BrandHooker BlackHeart
Choose Your PartAdapter Kit
Emission Code4
Exhaust SeriesHooker BlackHeart
Material409 Stainless Steel
Product TypeAdapter Kit
Tubing Diameter (in)2.5
Part NumberBH13257



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

When connecting mid length headers and cast iron manifolds to our full exhaust kits, an adapter pipe is required to fill that gap between the end of the headers or manifolds and our Hooker exhaust systems (which are designed to work with long tube header systems). Hooker has created a full line of adapter tubes that fill the gap and include all hardware and gaskets for a clean and simple connection.


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