R1 Muffler on the Ol' Gixxer

[Bill]

I added another Yamaha part on my GSX-R1100. I had '79 XS1100F main jets, Standard handlebars and front brake lines. Today, following Denny Zander's example, I mounted an R1 Titanium muffler in place of the aftermarket Vance & Hines Supersport unit. The result was a more modern look and quieter exhaust with no perceptible change in performance.

R1 Muffler on my 1987 GSX-R1100

The bike feels so sporty I may have to put back the stock clip-ons!

[mitch]

Muffler

Bill, is that ever sharp looks great i just finished putting two shorties on my venture . When i wwas gonna patch my left muffler as i was taking it off it broke in half So off to canadian tire got some pipe ordered two shorties from kimpex and voila. Shes louder almost sounds like a harley , but too achive that ill have to set the timing off kilter and unplug a plug wire or two , so it backfires and runs rough LOL. Just joking but it does sound quite nice. Gonna be a long winter .........MITCH

[glenn]

harley comment

I have heard a lot of people here call them cattle dogs since they are so often on the back of the ute. Thats our name for a pick up

[MartyA]

Bill, did you buy it or rescue it from a salvage yard? About how much? After scraping the ceramic off my muffler in Georgia I need to replace it. Just wondering what I might pay.

[rainbowshooter]

Now how did you scrape off the ceramic in Georgia, when all we did down there was nice and relaxing sight seein?

[Bill]

Marty wrote:

...did you buy it or rescue it from a salvage yard? About how much?

I bought it on eBay. I think it was about $50 with shipping. I just checked and found a couple there.

They come in a few colors. I got the blue one to match my GSX-R, and Denny Z has the black carbon fiber one to match his black bike. Check around to see what's out there. It's a nice, quiet muffler, but even more cool if it matches your bike!

XSively,

[MartyA]

relaxing sight seein

Har har. Tell me, do YOU know haw far over an XS has to go to scrape ceramic off the pipe? I do. Too far!

Bill, is the can inlet diameter the same as the pipes?

I have I think a MAC 4-1, it is only two pieces, the header and the megaphone muffler. The muffler is part of the pipe that clamps on the collector. I would need an adapter also.

[Bill]

Marty wrote:

Bill, is the can inlet diameter the same as the pipes?

I have I think a MAC 4-1, it is only two pieces, the header and the megaphone muffler. The muffler is part of the pipe that clamps on the collector. I would need an adapter also.

I don't recall the exact diameter. At first I was going to try to do it myself with an off-the-shelf size adapter. When I examined it closely I realized that it would require an adapter pipe with size changes and some complex bends.

My friend at the Midas shop had the tools to do it right. He fabricated the adapter so it all fit together as if it were factory made for my bike. He charged me shop rate and the materials were included. It cost as much as the muffler, but it was worth it to me.

When I adapted an old MAC 4:2 header for Harley mufflers, I took them to a shop and had some reducers welded in place so the mufflers would slip on. It was a different shop that did pretty rough work. (They won't get my business again.) But something like that might work for you.

On a standard slip-on (or HD muffler) the inlet pipe comes straight out from the muffler body. The R1 muffler inlet pipe has a slight bend fairly close to the muffler body. You can barely see it in the top photo. You'll have to allow for that when sorting out your adapter.

Denny Zander's application is a lot closer to yours. He started with a Jardine system and adapted an R6 muffler and later the R1. Maybe he could tell you how did his.

Good luck and keep us posted on your progress!