Bully Dog 81420 Rapid Flow User Manual
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rAPid FlOW inSTAllATiOn
rapid Flow exhaust # 81420
TROUBLESHOOTING:
If you have questions during the installation of this product, 
please visit 
www.bullydog.com/Product_Updates.php
.
The latest version of these instructions can be found at the 
same location. Please review the Troubleshooting section 
on page 9 before calling technical support to cover most 
common issues. Technical support is available by calling 
866-bullydog (866-285-5936).
TABLE OF CONTENTS
INTRODUCTIONS ................................................................................. PG 2
BILL OF MATERIALS ............................................................................. PG 3
EXHAUST REMOVAL ............................................................................. PG 4
EXHAUST INSTALLATION ..................................................................PGS 5-8
QUICK LOCATION OVERVIEW.................................................................PG 5
INSTALLATION STEPS......................................................................PGS 6-8
TROUBLESHOOTING ............................................................................. PG 9
This Application was designed as a performance cosmetic upgrade. Towing a 5th 
wheel or bumper tow trailer with more than 500lbs tongue weight may result in 
damage to your vehicle and/or the exhaust system.