2006-2017 Harley Dyna Boarzilla 2:1 Full System


2006-2017 Harley Dyna Boarzilla 2:1 Full System

Year: 2006-2017
Make: Harley Davidson
Product Number: 581Z-31 Black 32 Chrome


Retail Price

Chrome $ 999.00     Black $ 1,149.00

Part Numbers and Instructions at bottom of page.

Will fit Fat Bob and Wide Glide see part#'s at bottom of page.


Will fit 2014-2017 Dyna Low Rider and Low Rider S 

with minor adjustments to the brake pedal.


2006-2017 Harley-Davidson
Dyna motorcycles
D&D 2 into 1 Boarzilla Exhaust pipe.

2:1 Boarzilla is a stepped header system
at the head is 1 7/8" to 2" at collector
and 2 1/2" where the muffler goes to the header.

All Boarzillas full systems are equipped with
heat shields,exhaust gaskets, bolt kit and baffles.
Each exhaust system is designed and dyno tested
in our facilities.
Our testing is done with the Harley Tuner's.
Every pipe is designed to increase low-end torque
and horsepower.
Performance increases are about 8 to 10 percent on
stock motors but may very with built motors
with the proper tune on the bike.


Perforated Wrapped baffles
are for 116" to 131" motors
Perforated baffles
are for 116" to 131" motors
Baffles come in a Wrapped version to make them a little quieter.
Note: The inter core of the perforated baffle is 2 1/2"

2006-2017 Boarzilla system comes with 12mm
02 bungs for the stock 02's
All 2006-2017 Dyna model are required be
tuned with our exhaust.


At idle, the motorbike is deep, boomy
and full of character. Not only does the pipe look good,
it is a wonderfully sounding experience for the rider.
Dave Rash, Pope of Pipe


Note: Blueing and Discoloration
are caused by Improper Tuning
and will not be covered under Warranty


D&D Performance Exhaust Systems

are designed for close course racing applications only.
Not for use on pollution controlled vehicles.

Finish Options:
  • Midnight Black
  • Show Chrome

Cut Options/Additional Images: