two out exhaust

SLR · SLR's Garage

Hi there all yet an other exhaust ??
I have spent some time looking at older threads and come up with zip.
I'm fitting a one in two out muffler and will have to modify the valance
has any one done this ? and if so and if you have pics would you please
post them
I bet I'm not the only one wanting to know and see this.
Thanks Steve.

03-15-2003, 08:30 AM

Dickster has one. Others too. There must be something in the archives.

This thread is the only one I can remember: dansk system arrived - yeah baby

Unfortunately it's not what you're after.

Vipergrün · 03-15-2003, 09:19 AM

No pics, but here is what I did...

Using your floor jack, lift the new muffler into place with the valance attached so the right side pipe is barely touching the valance. You cannot attach it, but you can line up the holes with the heat exchangers. Put a piece of blue painters tape (or other) on the valance where the right side pipe is. Once you have verified the alignment of the muffler you're ready to make the reference marks on the tape. I used a piece of cardboard to make a template of the left side of the valance, flipped it over to the right side and traced the cutout on the tape. Then, you just fire up a jigsaw fitted with the fine tooth metal cutting blade ands go for it. Make sure you support the valance while cutting it, it will bend if you're not careful. Use a bit of primer and touchup paint on the raw edge, not much is needed. When you are done, you should practically have a mirror image of the left side.

Good luck!

03-15-2003, 10:29 AM

SC with Flauwmeister sound file

Doug Zielke · 03-15-2003, 12:00 PM

Quote:

Originally posted by bb80sc
......When you are done, you should practically have a mirror image of the left side......

Except that the left side has factory-formed edges.

Bill Verburg · Bill Verburg's Garage

Heres one
rear valance

SK · 03-15-2003, 07:17 PM

here is mine

Randy Webb · 03-15-2003, 07:19 PM

How loud are the twin exit mufflers compared to the single exit ones? What about resonance?

03-15-2003, 07:24 PM

mpeg with sound of a Flowmaster dual out

dickster · 03-15-2003, 11:54 PM

i used the same method as bb80sc. with a dremel for the cutting.

the two out dansk is loud, but no resonance.

03-16-2003, 12:11 AM

Quote:

Originally posted by Randy Webb
How loud are the twin exit mufflers compared to the single exit ones? What about resonance?

It's my impression that 1 in 2 out mufflers are not so loud. However 2 in 2 out mufflers are usually quite loud and can often suffer from annoying resonance.

They can also provide breathtakingly gorgeous sound. I heard a 993 varioram engine (in a 1972 911) with a custom made 2 in 2 out recently

Absolutely wonderful, but also very very loud.

SK · 03-16-2003, 03:41 PM

Mine is louder than OE, but not that loud. It sound very mean when you get on it..It is not as loud as many "Ricers".
I took my friend for a ride the other day...he also has an '85, but the sound pad/insulation in his engine comp. is gone. He said my new muffler was no louder than his OE muffler w/o the sound pad/insulation.

Bill Verburg · Bill Verburg's Garage

there are numerous threads on the mods needed to accomaodate a right side outlet, search IS your frind
Here's one

Tim Hancock · 10-03-2005, 03:51 AM

Here is a link to my 2 out conversion. After marking the valence, I took it off and simply used tin snips, then filed the raw edge, then rolled the edge in slightly, then touched up the edge with touch up paint. The seperate foward extending valance extension was left as is, although one could add a little piece to it to match the left side piece. You cannot see both side pieces at the same time, so why bother.DIY stock muffler mod, 1 out to 2 out, SC

PS: save the piece you cut off in case you ever want to re-attach it if you decide to go back to a single out.