So today I stop by the local Harley custom shop for a muffler. They have 10 kabillion different ones! I choose a pretty one and a clamp and handed over $15. Well, a $20 but he gave me $5 back. The HD number is 65747-94. I got no tin cans so I stop by my local Ace Hardware (because Ace is the place) and purchase mounting hardware and some non-hardening Permatex rated to 400*F. The stock muffler comes off MUCH easier than expected. I put half a tube of the black goop on my head pipe and  mount the new muffler. Man did it look good! I couldn't believe the difference! I was elated. Manic actually! I let the goop dry a bit then fired it up. Instant depression! While the tone was slightly deeper than my stock propane garage heater with 8 5/16" holes in its butt, it was very quiet. Oh well, at least it didn't pop and fart no more. Two miles down the road something begins to stink. I smelled my arm pits...nope, not them. I stuck my hand down the back of my pants then smelled my fingers. Not that either. At a red light I figured the smell must have something to do with the pretty smoke coming from my exhaust. The black goop turned into a black liquid that smelled worse than my cat's litterbox after he eats the BUMBLE BEE Sensations Spicy Thai Chili Seasoned Tuna! Now I have a mess to clean up. I need to go to a muffler shop and have an adapter made (or buy a can of peas). And I need to find a way to drill out the baffles in the HD muffler. Or I may just go back and pick up some of the used aftermarket mufflers he has laying around. I don't know. Anyhow, that's my story. Thanks for listening.

It was louder than the stock one before I drilled holes in it. I figured all Harley mufflers were the same as long as they mounted the same. I guess not. But Googley says that the P/N I got is from a 95-05 Dyna.  

Wow,, I woulda thot it would have a nice note for ya..

Have you thot about a Supertrapp?

justin_o_guy2 wrote on 05/26/12 at 19:31:58:


I like the tone, just want it louder. I am gonna try to pop a hole in the baffle. Supertrapp=$$$$$$$$, my bank account=$. The math don't work.  

Well, I popped out the freeze plug in the baffle and it was just as loud and annoying as no muffler at all. Definitely a straight pipe. I drilled a 3/8" hole in the freeze plug and stuffed it back in. I think it may be perfect! Still has the deeper tone and is a touch louder than my stock muffler with the 8 5/16" holes. I will attach a sound file. Oh...and I forgot to cut slits in the HD muffler so I did that and took out the spacer in the center of the clamp so it tightened up further. More testing is needed, but so far no leaks!

I don't know how it would make sparks. I had the muffler off and the freeze plug on the bench when I did the drilling. Is there something I should be concerned about?

Problee nothing for you to be shook about, I was running a grinder on the end of the header, threw sparks at the vent tube & Kerblooey! Spent the price of a new battery & a coupla hours cleanup..I just toss that out when it looks like someone mite benefit..Id hate to see someone step in that beartrap when a little notice would save them, others will read it, too.

justin_o_guy2 wrote on 05/27/12 at 10:15:08:


Not to worry...I am not permitted to use power tools...