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Sanderson Angle Collector Reducers
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Header Reducer Set, Angled

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

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

Angle Reducers position the header collector exit angle away from the block, making it easier to hook up your exhaust system down pipes. Select the reducer to match the size of the header outlet (collector diameter) 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.
  • steven kemper
    Apr 21, 2020, 21:11

    are these avail with 2 bolt manifold flange?

    Administrator
    Apr 22, 2020, 09:32

    No

  • Kirby Smith
    Apr 11, 2020, 09:49

    Thank you.solved two issues now can you point me in the direction of where the cross pipe is best placed thanks again Kirby

    Administrator
    Apr 11, 2020, 14:21

    On a properly tuned application and with dual exhaust piping installed, take a can of lacquer spray paint and paint a thin stripe down the side of each pipe (facing the transmission) from about the bell housing area to the transmission mount. Now, go drive the vehicle on the freeway for a few minutes. Come back and look at the stripe and there should be an area where the paint has started to come off. That is the location of the final primary pulse and provides the optimum location for the crossover pipe connection.

  • Kirby smith
    Apr 10, 2020, 08:35

    Do I loose or gain by reducing 3” collector (2.5”) or is it just bigger is better. I thought somewhere I heard you need a little back pressure. For 69 bbc in like chevelle ps. Cross x pipe or - (pipe) thanks kirby

    Administrator
    Apr 10, 2020, 10:41

    There is a considerable amount of misinformation on exhaust piping size. The math shows that unless an application is making 1500+ horsepower and spending most of its time above 6,500 RPM, 3.0" dual exhaust piping is way too big. To large and exhaust velocity slows, taking away horsepower and in some case requiring power to push the exhaust gases out.

    X-pipe, H-Pipe, Crossover are all names for basically the same thing---a pipe that connects the to sides together for the benefit of balancing the exhaust pulses between the two engine banks. Although all are beneficial, most "X" or "H" pipe kits do not place the connection in the optimum location, but any connection is better than none at all.

  • Bill McBride
    Oct 8, 2019, 12:54

    I s the bolt ring welded on or loose so you can adjust where the angle goes?

    Administrator
    Oct 8, 2019, 13:05

    The ring on the header collector is loose so that the exit angle of the reducer can be adjusted.

  • Bill Belt
    Jul 31, 2018, 15:44

    Are these Collector/Reducers the same as the ones that come included with the BB10-SEC Silver Ceramic Coated Blockhugger headers? If not how do I order the correct Collectors/Reducers for that model header?

    Administrator
    Jul 31, 2018, 23:27

    The same, and included.

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