Bully Dog 83420 Rapid Flow User Manual
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9
rAPid FlOW inSTAllATiOn
rapid Flow exhaust # 83420
8. Hang the Y pipe muffler in the stock location
using the hanger clamp on the upper outlet of 
the “Y” pipe. This determines the placement of 
the rest of the system. (The “Y” pipe is installed 
vertically.) Install the Y Pipe Muffler, you will use 
Hanger C to secure the Y Pipe Muffler. 
Note: The Passenger Side Tail Pipe is fitted into the
lower extension and the Driver Side Tail Pipe will 
be in the upper extension as shown. 
9. Install the Driver Side Tail Pipe over the rear axle
and into the Y Pipe. Confirm that the bend is di-
rectly over the rear axle and secure with Hanger 
C.
10.Install the Driver Side Tail Pipe Tip into the Driver
Side Tail Pipe. Use one of the supplied clamps to 
secure the junction between the two pipes and 
hang from hanger D. 
11. Install the Passenger Side Tail Pipe over the rear
axle and into the Y Pipe. Confirm that the bend 
is directly over the rear axle, and secure with a 
clamp.
12. Install the Passenger Side Tail Pipe Tip into the
Passenger Side Tail Pipe. Use one of the supplied 
clamps to secure the junction between the two 
pipes and hang from Hanger E.
SwITCH DIRECTIONS: THE NEXT STEPS wILL BE FROM THE BACk OF THE TRUCk
Hanger C
Driver Side Tail Pipe
Passenger Side Tail Pipe
Driver Side Tail Pipe
Hanger E