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Sanderson Straight Collector Reducers
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Header Reducer Set, Straight

Straight Header Reducers to connect larger header exhaust collector to smaller exhaust tubing. (pair)

  • $32.10
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  • Weight
    4.0000 lbs
  • SKU
    S-RED2.5

Our Straight Reducers reduce the size of the header outlet (collector) to fit your exhaust system.

Sold in pairs

  • 3.0" Reducer for 3.0" to 2.5" tubing diameters
  • 2.5" Reducer for 2.5" to 2.25" tubing diameters

 

Please Select the Correct Size for Your Application Below

Sanderson Collector Dimensions

Example of Use:

You have a 3.0" diameter collector on your header, but your exhaust piping or head pipes are 2.5" diameter. Use a collector reducer to merge the change in diameter from 3.0" to 2.5". The reducer would bolt to your headers, and then a qualified welder would fit and weld the head pipes to the reducer.

NOTES :

  1. Some crafters prefer to have a one-piece head pipe, with no weld connection. In that case you would have a muffler shop bend a head pipe for you with a flange and ring out of the desired material diameter to match your headers (i.e. 2.5" collector = 2.5" diameter head pipe). With this configuration you would not need the reducer.

 

 

  • Reducer Dimension
    2.5" Collector Diameter, 3.0" Collector Diameter

Product questions

Please to ask a question.
  • Bob Mehler
    Nov 5, 2018, 17:29

    Does the 2 1/2" collector fit your QP 1000 Headers ? Based on my measurements the 3 bolt flange bolts are 3" apart not 3 1/16

    Administrator
    Nov 5, 2018, 18:56

    Yes, it's the same collector reducer.

  • Pat Varley
    Mar 15, 2018, 05:54

    Does the tube need to be welded to the flange? Or simply rely on the collector bolts and gaskets?

    Thank you.

    Administrator
    Mar 16, 2018, 02:10

    Headers are bolted to the engine. The under chassis exhaust piping is welded to the reducer (or a one-piece down pipe is made by a muffler shop). The exhaust piping with reducer (or down pipe) is bolted to the headers. The reducer is NEVER welded to the header collector.

  • Donald L Bell
    Nov 13, 2016, 20:59

    Does this header reducer reduce 3" to 2.5" pipe?

    Administrator
    Nov 13, 2016, 21:24

    It reduces a 3.0" collector to 2.5" tubing, as it clearly states in the product details:

    3.0" Reducer for 3.0" to 2.5" tubing diameters
    2.5" Reducer for 2.5" to 2.25" tubing diameters

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