Supertrapp Exhaust EXHAUST; FXD91-05 2-INTO-1 EXHAUST

The D&D 2-into-1 Boarzilla Exhaust system is designed to deliver aggressive performance and deep, commanding sound for 2006–2017 Harley-Davidson® Dyna models. Featuring a stepped header design, precision-engineered baffles, and full hardware and heat shields, this exhaust system increases low-end torque and horsepower while providing a standout look and tone.

FEATURES

• 2-into-1 Boarzilla stepped header system (1 7/8" at head to 2" at collector, 2.5" at muffler)

• Designed to increase low-end torque and horsepower (8–10% on stock motors)

• Perforated wrapped baffles for 116" to 131" motors, providing slightly quieter sound

• Complete with heat shields, exhaust gaskets, bolt kit, and baffles

• Tested on dyno with Harley Tuners to ensure performance gains

• Includes 12mm O2 bungs for stock sensors

• Fits 2006–2017 Dyna models, including Fat Bob and Wide Glide

• 2014–2017 Low Rider and Low Rider S fit with minor brake pedal adjustments

• Note: Blueing and discoloration caused by improper tuning are not covered under warranty

DETAILS

• Brand: D&D

• Model: Boarzilla 2-into-1 Exhaust

• Fitment: 2006–2017 Harley-Davidson® Dyna models

• Muffler diameter: 2.5" at header

• Condition: New

• Requires tuning for all models to achieve optimal performance