Bully Dog 83420 Rapid Flow User Manual
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rAPid FlOW inSTAllATiOn
rapid Flow exhaust # 83420
13. At this point, if you need the 
extra Straight Pipe cut it to the 
desired length. Keep in mind that 
you need 3 inches of overlap when 
you cut the pipe. If you don’t need 
the Straight Pipe, simply install the 
Muffler directly into the Cross Mem-
ber section. If the Straight Pipe is 
not needed, you will have an extra 
straight pipe and an extra clamp left 
over when you are finished.
14. Once the entire exhaust system 
is installed, inspect the system to 
ensure that no part of the exhaust is
in direct contact with the chassis or body; adjustments may be necessary. Having any part of the exhaust system in direct 
contact with any part of the body or chassis will the cause the exhaust to rattle.
15. Return to each of the Clamps and tighten with a 9/16” wrench. Again, do not over tighten Clamps.
9/16”