Bully Dog 83420 Rapid Flow User Manual
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rAPid FlOW inSTAllATiOn
rapid Flow exhaust # 83420
REMOVAL OF STOCk EXHAUST SySTEM
In these steps you will remove the stock exhaust system.
IMpoRTaNT: It is illegal in all 50 states and Canada to remove the catalytic converter.
1. Cut the exhaust system starting after the catalytic 
converter. Measure and cut 3 inches after the flange 
towards the rear of the vehicle. On some vehicles 
you will need to cut 1 inch in front of the band clamp. 
Both ways are pictured. 
 
2. Use a sawzall to cut the exhaust immediately behind the muffler. 
 
 
 
 
3. To make removing the Hangers an easier process, it is recommended 
that you use a silicone spray lubricant to spray each of the rubber 
hangers holding the stock exhaust.
 
 
 
 
 
 
4. Remove each piece of the stock exhaust system, including the stock 
exhaust hangers.
Cut Exhaust after muffler
Cut Exhaust 3” after Flange
or Cut Exhaust 1” before Band Clamp
Remove Hangers
Exhaust Removed