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General Category >> Rubber Side Down! >> Yet another Dyna muffler question
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Message started by Realbtl on 05/12/12 at 15:35:11

Title: Yet another Dyna muffler question
Post by Realbtl on 05/12/12 at 15:35:11

I looked through the other threads and didn't see this one. The pipe looks like this:
http://https://lh6.googleusercontent.com/-_hdzaORPcrU/T67hUCOb-0I/AAAAAAAAAO4/P7yjLx7j6jw/s640/DSCN0287.JPG

When I slide the muffler on the pipe hits a reduced ID section of the muffler like this:
http://https://lh3.googleusercontent.com/-P7oZ_S4l7bo/T67hVr0qH-I/AAAAAAAAAPA/3CPdAVFexYM/s640/DSCN0288.JPG

My first notion is to just cut off a bit of the end of the pipe but I figured I'd ask before I did something stupid. And yes, I am a bit of a dork mechanically.

BTW 2007 S40. Thanks

Title: Re: Yet another Dyna muffler question
Post by Serowbot on 05/12/12 at 16:15:56

If that's fully seated at that point,... just attach it there. I cut a few extra slits in the muffler end with a hacksaw to let the clamp compress a bit more... Use a sturdy clamp...

That reduced section on the pipe, is where the inner wall meets the outer. It would be best to leave it in tact, although you could probably get away with cutting it,... but no need really...
...better to leave it and keep it strong... ;)...

Title: Re: Yet another Dyna muffler question
Post by Realbtl on 05/12/12 at 16:31:00

Thanks Serowbot. I always like to check before getting out the cutting tools.

Title: Re: Yet another Dyna muffler question
Post by AlphaBarney on 05/13/12 at 15:23:12

Ran into the same thing when I installed mine. I did cut off that reduced part. There weren't any welds or anything so I didn't see why not. Haven't had any noticeable problem yet.
Theoretically, what problems would you expect cutting that to cause?

Title: Re: Yet another Dyna muffler question
Post by Serowbot on 05/13/12 at 15:34:44

Alph... Probably none... I just mentioned that if there's an option, I'd just leave it...
I'm sure you're fine... ;)...

Title: Re: Yet another Dyna muffler question
Post by comp_pro on 05/15/12 at 13:31:42

I had the exact same problem with my Dyna muffler. Turns out there was a very small, narrow "ring" inside of the Dyna muffler. I used a screwdriver and pried the ring out and everything fit perfect. The ring wasn't spot welded or attached to the muffler in any way that I could see, it was just sitting in there keeping me from sliding the muffler all the way to the larger ring on the header pipe. (by the way, before I noticed the ring, I did cut off the very end of the header pipe and it still wouldn't slide all the way on).