Bully dog’s rule of thumb for exhaust sizes, Rapid flow installation, Introduction – Bully Dog 82410 Rapid Flow User Manual
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rAPid FlOW inSTAllATiOn
rapid Flow exhaust # 82410
Note: This instruction set and the Rapid Flow Exhaust system included is made exclusively for the 5.9L
Cummins ‘04.5-’07. In 2004 Dodge introduced a new engine half way through the model year. These
instructions cover the late 2004 models and with the catalytic converter.
INTRODUCTION
The Bully Dog Rapid Flow Exhaust Systems have been specially designed to allow the lowest mandrel bends in
the industry. The lower mandrel bends allow increased air flow which reduces exhaust temperatures, improves
engine efficiency and increases horsepower. This results in adding additional horsepower and fuel economy.
This instruction set covers the 5” Rapid Flow Aluminized Exhaust designed specifically for the 5.9L Cummins.
BULLy DOg’S RULE OF ThUmB FOR ExhAUST SIzES
300 HP
400 HP
500 HP
600 HP
4” Exhaust
Systems for
HP Applications
Less Than
450hp
5” Exhaust
Systems for
HP Applications
Between 450hp
and 550hp
6” Exhaust Systems
for HP Applications
over 550hp
4”
Ceramic-Coated
Exhaust System
for all HP
Applications