Description
D&D 641Z-31M Abuelo Cat Black 2-into-1 Exhaust
Fits 2018–Newer Harley M8 Softail Wide Tire Models
The D&D 641Z-31M Abuelo Cat Black 2-into-1 exhaust is built specifically for Milwaukee-Eight Breakout and Fat Boy wide tire models. This up-swept system improves low-end torque, throttle response, and delivers an aggressive performance tone.
⚠️ Does NOT fit:
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Street Bob
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Low Rider
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Slim
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Fat Bob
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Deluxe
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Sport Glide
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Heritage Classic
➡ See 637Z-31B for those models.
Performance Design
D&D engineered this stepped 2-into-1 header system specifically for the M8 platform:
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1 3/4″ → 1 7/8″ → 2″ stepped headers
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Megaphone-style muffler
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Up-swept performance design
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Black finish
What’s Included
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Heat shields
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Exhaust gaskets
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Mounting hardware
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Performance baffle
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18mm and 12mm O2 bungs
The dual O2 bungs allow easy integration with auto-tune systems like ThunderMax.
This system increases low-end torque and horsepower while giving your Softail a clean, aggressive look.
