Description
D&D 637Z-31M Abuelo Cat Black 2-1 Exhaust for 2018–Up Harley M8 Softail
The D&D 637Z-31M Abuelo Cat Black 2-1 Exhaust fits 2018–up Harley-Davidson M8 Softail models including:
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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
❌ Does not fit Breakout or Fat Boy (See 641Z-31M for those models).
This system features a stepped 2-1 header design that improves exhaust flow and throttle response. The pipes step from 1 3/4″ to 1 7/8″ to 2″ into a megaphone-style muffler.
Features:
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Black heat shields
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Megaphone muffler
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Exhaust gaskets included
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Mounting hardware included
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Removable baffle
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18mm and 12mm O2 sensor bungs
The Abuelo Cat increases low-end torque and horsepower while delivering the aggressive D&D sound riders expect. It pairs perfectly with performance tuning modules like ThunderMax Auto Tune.
