S4450304 Axle-Back Exhaust System 2.5 in. Dual Rear Exit, Fits Select Mazda 3
InfoVehicle Info Needed
MBRPPART NUMBER: 679-S4450304

S4450304 Axle-Back Exhaust System 2.5 in. Dual Rear Exit, Fits Select Mazda 3

$68999
ShippingShips on Nov 03, 2026
Lowest PriceLowest Price Guarantee

Mazda
Axle-Back Exhaust System
  • Fits Select Mazda 3, 3 Sport
  • 2.5L I4 Engine
  • 2.5 in. Tubing
  • Dual Split Rear Exit
  • 5 in. Tips
  • Street Profile
  • Armor Pro Series
  • T304 Stainless Steel
  • Sold as a Kit

    The axle-back exhaust system is built for 2019-2026 Mazda 3 and 2025 Mazda 3 Sport with the 2.5L I4 engine, using 2.5 in. T304 stainless steel tubing that runs from the rear axle rearward. It finishes with a dual split rear exit layout and 5 in. tips. It is part of the Armor Pro series.

    MBRP S4450304 Axle-Back Exhaust System Features:

    • Fits 2019-2026 Mazda 3; 2025 Mazda 3 Sport with the 2.5L I4 engine
    • Armor Pro series construction with 2.5 in. mandrel-bent T304 stainless steel tubing
    • Dual split rear exit configuration
    • Finishes with 5 in. tips (included)
    • Street profile configuration
    • Enhanced exhaust tone
    • Bolt-on installation

    Emissions Note:

    This part is legal for sale or uses on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • Part TypeExhaust System
    BrandMBRP
    Package Height8.75
    Package Width17.0
    Package Length35.0
    Weight30.0 PG
    Part CategoryPerformance Parts
    Exhaust Tip WallSingle
    Exhaust Tip Quantity2
    Exhaust Tip FinishPolished
    Exhaust Tip EdgeStraight
    Pipe Material304 Stainless Steel
    Hangers IncludedYes
    Muffler Body Width5 in (127 mm)
    Main Piping Diameter2.5 in.
    Tail Pipe Quantity2
    Tail Pipe Tapered OutletNo
    Inlet TypeBolt-on
    Exhaust Tip MaterialStainless Steel
    Muffler Body ShapeRound
    Muffler Outlet Quantity1
    Muffler FinishPolished
    Muffler Body Diameter (In.)2.756 in (70 mm)
    Clamps IncludedYes
    Muffler Body Length10.75 in (273.05 mm)
    FinishPolished
    Exit StyleDual Rear
    Muffler Body MaterialT304 Stainless Steel
    Muffler Body Height5 in (127 mm)
    Clamping TypeRound Band
    Exhaust Tip CutAngled
    QuantitySold as a Kit
    MaterialT-304 Stainless Steel
    Exhaust Tip ConnectionBolt-on
    SeriesArmor Pro
    Muffler Quantity2
    TypeAxle-Back
    Tail Pipe Outlet Outside Diameter2.756 in (70 mm)
    Tubing Diameter2.5 in.
    Exhaust Tip ResonatedNo
    Tip ShapeRound
    Exhaust Tip Diameter5 in.
    Part FitmentDirect Fit
    Vendor Part NumberS4450304
    Package Qty1
    Package TypeEA

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