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Hooker BlackHeart Adapter Kit

Connects Hooker BlackHeart Long Tube Headers with a 3 inch Collector to 2.5 inch Exhaust Kits

PART# 42107HKR

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$78.71   Suggested Retail
$63.76   Holleydays Price
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WARNING: This product is not street legal and may only be used on Racing Vehicles. Racing Vehicles must be used exclusively for racing or other forms of competition. Racing vehicles must not be registered and must never be used on the street. It is illegal to install this product on a registered vehicle and use it on the street.


When connecting Hooker BlackHeart long tube headers with a 3" collector diameter to 2.5" diameter exhaust kit, an adapter pipe is required to fill that gap between the end of the headers and our Hooker exhaust systems. This adapter works with Hooker long tube headers with slip on collectors 2275HKR, 2276HKR, 2297HKR, 2298HKR, 2104HKR, 2105HKR, 2107HKR, 2108HKR, 2109HKR, 2334HKR, and 2335HKR.


  • Designed to provide a long-taper exhaust flow transition from 3” long-tube header collectors to 2.5” exhaust systems. Gasket-less, slip-on design eliminates 3-bolt flange connections to provide optimized ground clearance and maintenance-free service. Incl
  • OE quality O.D. to O.D. connection solution for eliminating 3-bolt header collector gaskets
  • Used to connect slip-style header collectors to similar sized exhaust system tubing. Provides the lowest profile tubing connection possible; perfect for vehicles that are ground clearance


Application1967-69 Camaro
BrandHooker BlackHeart
Choose Your PartAdapter Kit
Emission Code4
Exhaust SeriesHooker BlackHeart
Inlet Diameter (in)3
Material409 Stainless Steel
Outlet Diameter (in)2.5
Product TypeAdapter Kit
Race OnlyYes
Single DualDual
System TypeReducer
Tube Diameter2.5 inch
Tube Material409 Stainless Steel
Tubing Diameter (in)3
Type of ComponentReducer
Part Number42107HKR



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

Hooker BlackHeart has created a full line of adapter tubes that fill the gap in your exhaust system. Kit includes all hardware and gaskets for a clean and simple connection.


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