Axle Back Exhaust for Mazda 3 CX-30 (2019-2026) 2.0L 2.5L
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High-Flow Axle Back Exhaust for 2019-2026 Mazda 3 & CX-30 (BP / DM)
What it Does: The Axle Back Exhaust replaces the restrictive factory rear muffler on the 2019-2026 Mazda 3 and CX-30 to eliminate exhaust backpressure and deliver an aggressive, free-flowing exhaust note.
The Stock Mazda 3 & CX-30 Acoustic and Flow Restrictions
From the factory, the fourth-generation **BP** Mazda 3 and **DM** CX-30 utilize a heavy, multi-chambered baffled rear muffler engineered exclusively to silence exhaust resonance. This restrictive chamber creates turbulent boundary-layer separation and deadens the natural acoustics of the high-compression **Skyactiv-G** engine. Additionally, the bulky OEM assembly hangs dead weight behind the rear suspension subframe, dampening vehicle balance and chassis feedback.
The Engineering Solution
This axle-back setup replaces the factory baffled chamber with mandrel-bent, straight-through 304 stainless steel tubing and finished tips. Mandrel bending retains consistent interior tube cross-sections to eliminate flow bottlenecks and streamline exhaust velocity. Constructed from corrosion-resistant T304 stainless steel, the assembly withstands high exhaust gas temperatures and environmental road brine without degrading. Precision-welded mounting pins align with OEM rubber hanger locations for direct flange-to-flange bolt-on installation.
What's Included
- Pair of axle-back exhaust pipes with integrated tips
- Mounting hardware
Technical Specifications
| Fitment | 2019-2026 Mazda 3, CX-30 |
|---|---|
| Engine / Chassis | Skyactiv-G (PE-VPS / PY-VPS) / BP, DM |
| Stock Output | 155-191 hp / 150-186 lb-ft |
| Replaces OEM Part # | B-EXT-MD061-2 |
Compatibility
- Mazda 3 2.0L: 2022-2024
- Mazda 3 2.5L: 2019-2026
- Mazda CX-30 2.0L: 2020-2024
- Mazda CX-30 2.5L: 2020-2025
Frequently Asked Questions & Fitment Warnings
Does this fit the BP / DM 3 and CX-30?
Yes, this is a direct fit for the 2019-2026 Mazda 3 and CX-30 equipped with the **Skyactiv-G** 2.0L and 2.5L naturally aspirated engines. This unit does not fit any year, engine, or trim configurations outside the exact fitment list above.
Is an ECU tune required after installing this axle-back?
No ECU tune is required, as this system bolts on downstream of all factory catalytic converters and oxygen sensors, keeping fuel trims and emissions monitors unaffected.
The Mazda Sound Profile
Freeing up the exit path delivers a crisp, linear JDM exhaust note that emphasizes the high-compression character of your **Skyactiv-G** engine without droning or triggering CEL faults.
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