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Header Reducers 3" Diameter Collector
InfoVehicle Info Needed
SPECTREPART NUMBER: 865-4641

Header Reducers 3" Diameter Collector

$3999
ShippingShips on Nov 03, 2026
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$800
Steel Reducers without O2 Fittings [3 in. Collector to 2 1/2 in. O.D.]

555-30004

Steel Reducers without O2 Fittings [3 in. Collector to 2 1/2 in. O.D.]

$3199

Header Reducers
  • 3" Diameter Collector
  • 2-1/2" Outlet Diameter
  • 2/pkg

    Spectre’s Header-Collector Reducer kit includes two 3 to 2 1/2 inch header reducers and a set of extra thick 1/8 inch gaskets. The header-collector reducers are nickel plated for a long lasting, great looking finish. These header-collector reducers also have a 3-bolt welded on flange with a 2-1/2 inch reducer pipe to allow you to attach a 2-1/2 inch pipe to a 3 inch flange. The gaskets are compressed of ceramic fiber (CCF), which is designed to exceed typical non-asbestos type gaskets. The CCF is designed to not deteriorate or crack from excessive heat or pressure. This universal application includes necessary nuts and bolts made from nickel plated steel.

    • Nickel plated steel
    • Incudes two 3 in. to 2-1/2 inch reducers
    • Gaskets/hardware included
    • Gaskets/hardware included
    • 1/8 inch thick compressed ceramic fiber gaskets
      • Spectre Header Reducers are nickel plated for a long lasting, great looking finish. The included gaskets are compressed of ceramic fiber (CCF), which is designed to exceed typical non-asbestos type gaskets. The CCF is designed to not deteriorate or crack from excessive heat or pressure. This universal application includes the necessary nuts and bolts made from nickel plated steel.
    Part TypeHeader Reducer
    Product LineSpectre Header Reducers
    BrandSPECTRE
    Package Height3.0
    Package Width5.0
    Package Length2.5 in (64 mm)
    Weight1.85 PG
    Part CategoryPerformance Parts
    Oxygen Sensor Bung IncludedNo
    Outlet Diameter2.5 in (64 mm)
    ColorUnfinished
    QuantitySold as a pair
    Bolts/Studs IncludedYes
    Material UsedSteel
    Reducer FinishChrome
    MountingBolt
    Gaskets IncludedYes
    Reducer MaterialSteel
    Inlet Diameter3 in (76 mm)
    Collector Attachment3-bolt flange
    Reducer Outlet Diameter2.5 in (63.5 mm)
    Collector Diameter3 in (76.2 mm)
    Part FitmentUniversal
    FinishNickel Plated
    Vendor Part Number4641
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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