so lately ive been falling in love with minimalist, shorty pipes. i really want to try something like this out on my bike as i believe that the pipe on my exhaust is stopping my bike from looking a lot better.

now, here is the deal. i have the full V&H exhaust right now. its 3 pieces and i have already run it without the can/muffler and straight off the midpipe with disgusting gains. to be honest, it sounds horrible with no muffler/baffling. what id really like to do is have just a small turn down that would barely exit the bike. however, im not sure that i can find anything that would bolt up to where the mid pipe is on the V&H while still being able to make it far enough out to actually exit the bike. i DO NOT want this to exit straight down under the bike, but out to the side like a small shorty can would.

here are a few examples of what i would like to achieve:


100_0760.jpg?t=1247846479

now, from what i have been thinking, i have a couple of choices. one would be to leave my current mid pipe on the bike and to shove a good amount of baffling in it. the other choice would be to find an exhaust i like and make it fit. supposedly there was a guy on here that used to make the exhaust in the second picture on here for the F4i, but then went MIA. therefore, that option is out. there is an ebay 'motogp' exhaust (which is shown in the first picture), but it seems like the baffling in it is junk and it does still allow the bike to be pretty ugly sounding from a video i saw of a bike with it. i am looking for something very, very similar looking, but doesnt sound like poop. if that is the case then ill just leave my V&H system alone and continue rocking the muffler.

any ideas, concerns, criticism? id like to hear your thoughts on this.

 

First off, you can't start packing stuff into the mid pipe. It would be like stuffing the pipe with a potato. You want it to breath but with some kind of baffling. A baffle is some kind of thing that changes the direction of flow or retards it, like a dam or diverter. How much noise, RPM and things like that are based on exhaust flow and baffling. Moto GP bikes are tuned for max power and are loud. They are also light weight for competition, therefore small.

Maybe you could get a Buell muffler cheap and modify it to fit.


Baffle link

 

Fairly certain that the Buell exhaust will be too long

 

I'd take the mid pipe and rear section off without any mods, just in case you want to go back to what you've got now, and take a look around your local car exhaust specialist. There's a lot of short, oval 'go fast' mufflers out there for cars that would probably fit underneath. I'd then mount the muffler as far back as possible allowing for a turned out end piece. The exhaust guy should be able to knock up something to join the headers to the muffler with his combination bending flaring machine. I'd get him to just do a mock up, not even attached to the bike, first to see how the muffler sounded before going to too much trouble.

I went to our local car exhaust guy here for some parts to be made up to modify the internals on my V&H. I found that he quite enjoyed the change from working on cars and it was way cheaper than getting the bike shop to touch it...they would probably have taken it to him anyway.

If it could be made to fit you could just spray it with flat black heat proof paint and maybe knock up some custom panels to hide all but the turned out end.

You'd obviously need to dick around with your jetting.

Anyway, you asked for thoughts so there's mine.

 

Delkevic have mini cans now, something I'm looking at for a 93 Hurricane

 

i have no problem with a loud exhaust and i really want to eliminate the can for aesthetic reasons alone. the bike sounds great how it is, i just want to clean it up more.

the only reason i suggested putting baffle in the current midpipe is that it seems like my easiest option to not disrupt any of the remaining parts of the system. right now i have my wideband o2 sensor in my mid pipe so im not sure i can take it off without having to do some more welding on the exhaust to accommodate it. i do not want anything with a 'can', but would rather a slash cut styled pipe with a baffle in it somewhere. the baffle needs to be after my o2 sensor so i dont restrict any flow through it. i just know it will need some baffles in order to tone it down because without some type of muffling the bike sounds very ugly, i know this from experience.

do you guys think i will have any problems with not providing enough back pressure on the system as a whole?

 

I just added more bla..bla bla... here.

https://cbrforum.com/forum/cbr-1000f-hurricane-38/poor-mans-exhaust-conversion-single-stock-can-drilled-out-114897/

 

my concern is being able to run enough baffling to keep it sounding nice, instead of what youre describing in your post of how uneven pulses and waves of exhaust make the bike loud and noticeably bad sounding. im not sure i will be able to achieve that considering the length of piping that id have to use on the bike to create a small megaphone type exhaust.

 

Exactly! Why do you think the chopper builders build bikes with just a short section of open pipe. They can't build a bike with a tame sounding exhaust system that is small. Concept bikes tend to have small exhaust systems in the concept stage and then get larger in production. You just can't win.

 

only one way to find out...too bad it consists of me having to hack up my exhaust to figure it out...

i gotta find the pipe diameter, figure out a length of piping that i need to mate the header pipe to a new mid pipe, and a baffle that i can fit in the exhaust thats long enough to keep the noise down..