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Message started by jlsmedic on 04/06/10 at 00:21:12

Title: MUFFLER TIPS AND TRICKS???
Post by jlsmedic on 04/06/10 at 00:21:12

Okie dokie here are a couple of questions for the veterans of SS out there.


1. I purchased a Dyna muffler and I want it just a TAD louder than it is I like the low rumble but I want a ear piercing thumpthy thump thump at the throttle rasp.

2. if i drill 3.....1/4 inch holes at the baffle will I acheive this?

3. my pipe is blueing at the connection???? Is this a sign of an exauhst pipe that has an air leak somewhere??
:-? :-? :-? :-? :-?

Title: Re: MUFFLER TIPS AND TRICKS???
Post by justin_o_guy2 on 04/06/10 at 02:15:41

Are you sure you dont NEED a Supertrapp?

Title: Re: MUFFLER TIPS AND TRICKS???
Post by dasch on 04/06/10 at 09:03:01

start with ONE hole and test. I have a dyna exhaust with no baffle. It's loud. Very loud.
Blueing is fairly normal at the joint. Cover it up with heat shield of some sort. Test for leaks by closing the exhaust end shut while idling. You'll hear it shhhh  ;)

Title: Re: MUFFLER TIPS AND TRICKS???
Post by Routy on 04/06/10 at 10:20:35

Or 3 holes @ 3/16.

A 1/4" hole has near twice the area as a 3/16

Title: Re: MUFFLER TIPS AND TRICKS???
Post by Gort on 04/06/10 at 10:35:09

I modified my Dyna to make it louder, and  it is very easy to do.  I used a 12' long, 5/16 dia. drill bit.  While the Dyna is on the bike, snake the drill bit into the muffler through the rear of the muffler.   You will butt up against the baffle.  Place the bit at the 12 o'clock position on the baffle.  Drill it through the baffle.  Ride the bike and see what you think.

If its not loud enough, drill the baffle again, this time at the 6 o'clock position.  Drive the bike again, and if it still isn't loud enough, drill another hole at the 3 o'clock position.  With 3 holes, its going to be very loud.  If you still aren't satisfied, you can drill yet another hole at the 9 o'clock position.  But each time you drill a hole, be sure to road test it first.  You'd be surprised how much louder it will get.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by jlsmedic on 04/06/10 at 12:22:06

Isn't a supertrapp an exauhst system that is really quiet???

Title: Re: MUFFLER TIPS AND TRICKS???
Post by dasch on 04/06/10 at 12:29:24

http://www.youtube.com/results?search_query=savage+supertrapp&aq=f

Title: Re: MUFFLER TIPS AND TRICKS???
Post by justin_o_guy2 on 04/06/10 at 15:50:11


2E28372921202D27440 wrote:
Isn't a supertrapp an exauhst system that is really quiet???




Im running 14 baffles. No, it aint no kind O quiet, unless I want it to be.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by photojoe on 04/07/10 at 06:27:17

I'm running my Trapp with zero disks and no end cap. Yeah, let em know you're there 8-).

Title: Re: MUFFLER TIPS AND TRICKS???
Post by justin_o_guy2 on 04/07/10 at 06:41:18


425A5D465D585D320 wrote:
I'm running my Trapp with zero disks and no end cap. Yeah, let em know you're there 8-).




Pretty expensive way to get an open exhaust, aint it?

Title: Re: MUFFLER TIPS AND TRICKS???
Post by dasch on 04/07/10 at 10:31:24

;D it sounds like an expensive way

So, from what I gather, this supertrapp gets louder with MORE disks!! That makes no sense at all, but I find that all over forums. Can somebody elaborate?

Title: Re: MUFFLER TIPS AND TRICKS???
Post by bill67 on 04/07/10 at 10:38:12

 The more disks you have leaves more cracks for the sound to get out.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by justin_o_guy2 on 04/07/10 at 11:16:58

No disks & no end cap = open exhaust.

6 or so disks & an end cap = about stock.

15 disks & an end cap = nowhere nearstock. Disks can be added or removed to tune exhaust flow to carb jetting.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by dasch on 04/07/10 at 17:35:07

I see. The mo-disk-mo-noise formula only works WITH end cap.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by photojoe on 04/08/10 at 14:50:58


283731362B2C1D2D1D25373B70420 wrote:
[quote author=425A5D465D585D320 link=1270538473/0#8 date=1270646837]I'm running my Trapp with zero disks and no end cap. Yeah, let em know you're there 8-).




Pretty expensive way to get an open exhaust, aint it?[/quote]

It came that way JOG, and I like it just fine. There is back pressure in there, not like the straight pipes I ran on my Sportsters.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by photojoe on 04/08/10 at 14:53:03


2F2A3828234B0 wrote:
I see. The mo-disk-mo-noise formula only works WITH end cap.

I have to disagree. Early last year I ran with 6 disks and an open end cap. I hated the sound and didn't notice any increase in performance. It was quieter with the disks. I removed them after a couple of weeks and sold them to a forum member.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by dasch on 04/08/10 at 23:02:22

But you had no end cap, right? I am concluding, based on what folks here and on other forums said, that with the end cap, trapp is LOUDER with more disks. True or false?

Title: Re: MUFFLER TIPS AND TRICKS???
Post by justin_o_guy2 on 04/09/10 at 00:30:40


253D3A213A3F3A550 wrote:
[quote author=2F2A3828234B0 link=1270538473/0#13 date=1270686907]I see. The mo-disk-mo-noise formula only works WITH end cap.

I have to disagree. Early last year I ran with 6 disks and an open end cap. I hated the sound and didn't notice any increase in performance. It was quieter with the disks. I removed them after a couple of weeks and sold them to a forum member.[/quote]



The open end cap meant the airflow went out the end cap, not thru the slots the disks create.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by justin_o_guy2 on 04/09/10 at 00:33:04


525745555E360 wrote:
But you had no end cap, right? I am concluding, based on what folks here and on other forums said, that with the end cap, trapp is LOUDER with more disks. True or false?




One Mo Time,, yes. 6 disks, with an end cap,( thats an end CAP, as in not open, not with a hole in it, a CAP,which forces the exhaust to seek release from the exhaust pipe by passing between the disks,God I hope thats clear), its about like stock. With 14 disks, its not near stock,

Title: Re: MUFFLER TIPS AND TRICKS???
Post by dasch on 04/09/10 at 01:47:42

Yeah yeah, easy for you to say... Got it.  I was more replying to photojoe's post.

Justin, is that a cap you're talking about. As in... a cap?  ;)

Title: Re: MUFFLER TIPS AND TRICKS???
Post by photojoe on 04/09/10 at 06:39:53

Supertrapp makes various end caps, both open and closed. Google is your friend.
Another good resource is the Supertrapp forums here: http://forums.supertrapp.com/

You may have to experiment to find what works for you. Me, 2 years and over 8000 miles with this setup and I'm happy the way it is. It suits me just fine, and that's the most important thing.

Title: Re: MUFFLER TIPS AND TRICKS???
Post by justin_o_guy2 on 04/09/10 at 06:52:03

I was more replying to photojoe's post.

Yea, I got that. I was just trying to be extrra special clear in what I was sayoing.


Yep, Joe, Its the riders satisfaction what matters. If yioure happy, thats what its all about.

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