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Hedman Hedders 21137 - Hedman Oxygen Sensor Reducers

  • Header Reducer, 3-Bolt Flange, 3.5 in. Inlet, 3.0 in. Outlet, Oxygen Sensor Fitting, Steel, Each
  • Estimated Ship Date: Today
 
BrandHedman Hedders
Manufacturer's Part Number21137
Part TypeHeader Reducers
Product LineHedman Oxygen Sensor Reducers
Summit Racing Part NumberHED-21137
 
Collector Attachment3-bolt flange
Collector Diameter3.500 in.
Reducer Outlet Diameter3 in.
Oxygen Sensor Bung IncludedYes
Bolts/Studs IncludedYes
Gaskets IncludedNo
Reducer MaterialSteel
Reducer FinishPainted
QuantitySold individually.
 

Adapt your exhaust to your headers.

These Hedman reducers allow you to retain an oxygen sensor when you add on headers. They come with all the necessary flanges, gaskets, and hardware needed to adapt your exhaust to your headers.

Warranty

Hedman Hedders warrants their Street Headers against defects in materials and workmanship for the lifetime of the product. This includes tube cracks, bad welds, warped flanges, etc. In addition, the HTC ceramic coating utilized on Hedman's ceramic-coated headers is warranted for 5 years from the date of purchase against chipping, peeling, fading, discoloring, and rusting. Headers subjected to improper installation, off-road use, road hazards, and the use of Thermal Wrap are void of any warranty whatsoever. The ceramic-coated headers' finish warranty is void if the headers are used on engines equipped with superchargers, turbochargers, or nitrous systems. Breaking in a new or rebuilt engine with HTC coated Hedders will void coating warranties. Hedman recommends the use of cast iron exhaust manifolds or old Hedders during the initial break-in period of approximately 20 minutes. This will avoid damage to the coating's high-luster finish. You must have at least one hour of normal engine use before you can run your engine or vehicle on a dyno. The use of NOS, superchargers, or turbochargers will void the HTC warranty.