View Full Version : how many disc

09-21-2009, 07:20 AM
hello new to forum i have a 2004 fatboy harley davidson .i have just had mikuni easy kit carby installed. to bike it has a supertrapp muffler on it when i brought it . it has 13 disc and i put a 1" 1/4 hole in the end cap . i would like it to sound louder . do i make the hole bigger in end cap ? do i need to take dics out ? if i need to add dics were can i purchace from . i from victoria . in australia. any advice would be helpful. i was going to change pipes but was talked out of hope someone can help. cheers:

09-21-2009, 09:05 AM
More discs, more sound, more flow....leaner running.

You can add discs or thry our "open" end cap, just keep in mind you may get into a leaner running condition and may need to rejet.
The following items (assuming you have a 4" disc muffler) can be ordered through Show and Go in Australia;

P/N 404-6506, 6pack of discs
P/N 404-6512, 12 pack of discs
P/N 405-3046, open end cap