Well I added Yoshi rs-3 race cans to the 1100.lol Sounds awesome and I saved a bit of weight in the process too.
After I did some trial & error stuff I decided to use the stock header / chopped it just after the hanger mount and tig welded a mandrel bent pipe
to the header on both sides. The Yoshi cans are off a busa so I had to cut the mid pipe to fit the kat ( I guess the kat is a little shorter )
here's some pics





https://www.youtube.com/watch?v=smmu16Xc-OU
https://www.youtube.com/watch?v=8jsl1EBOS-I
Ya the rear brake lever is a little close to the midpipe so I shaved some
metal off of it for a better fit but I'm gonna lower the right side muffler clamp 1/2 inch or so and that should give me better clearance. No problems so far with jetting as i'm using the stock jets with the factory pro needles & stock air filter. The pipes give it a nice rumble but they get pretty loud on the top end, they have the baffle removed in the midpipes
plus the silencers in the mufflers. Talk about a free flowing exhaust.lol

After I did some trial & error stuff I decided to use the stock header / chopped it just after the hanger mount and tig welded a mandrel bent pipe
to the header on both sides. The Yoshi cans are off a busa so I had to cut the mid pipe to fit the kat ( I guess the kat is a little shorter )
here's some pics





https://www.youtube.com/watch?v=smmu16Xc-OU
https://www.youtube.com/watch?v=8jsl1EBOS-I
Ya the rear brake lever is a little close to the midpipe so I shaved some
metal off of it for a better fit but I'm gonna lower the right side muffler clamp 1/2 inch or so and that should give me better clearance. No problems so far with jetting as i'm using the stock jets with the factory pro needles & stock air filter. The pipes give it a nice rumble but they get pretty loud on the top end, they have the baffle removed in the midpipes
plus the silencers in the mufflers. Talk about a free flowing exhaust.lol


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