aftermarket exhaust measurments

[reiobard]

i have been toying with making my own exhaust for my FZ6 and i am looking for some help. Can some of you with after market systems get some measurements of the pipes, length and width, as well as how far apart they sit.


It is hard to get an idea from that lump that Yamaha calls a muffler.

[schumacher62]

heres the top secret factory specs for the leo vince exhaust system, the oval one which most directly fits the 07 bike. hope you can read italian...

[reiobard]

that is almost good enough, i am assuming that all the numbers are millimeters and all i need to do is convert. thank you tons.

Anyone else have anything?

[Hellgate]

Give us some more insight to what you are thinking. What kind of materials, what type of silencers, etc? Sounds like a way cool project.

[reiobard]

Originally Posted by Hellgate

Give us some more insight to what you are thinking. What kind of materials, what type of silencers, etc? Sounds like a way cool project.

Well, since every exhaust i have found for the FZ6 has been crazy expensive i have been looking through the 2800 or so universal silencers on e-Bay. I found this that looks like it might be similar enough that they can easily be modified into the rear of the FZ almost perfectly.

eBay Motors: DUAL MUFFLER EXHAUST PRELUDE S2000 IS300 TC S13 S14 Z33 (item 150219278562 end time Mar-02-08 00:15:35 PST)


in the ad it shows that the canister itself is 12" plus the 3.5" outlet extentions.

From the Diagram that schumacher62 got, the Leo's are 300mm canisters (11.8 inches) so the length should be good, the mount looks like it will be simple enough to mount to the stock mount point with simply welding a vertical piece to the mufflers on the horizontal mount. then it is just getting a pipe to connect it to the bike.

Providing it doesn't look too Ghetto i will have an exhaust for my FZ for under $100.

If it looks horrible then i will just order a real exhaust, but i think it is worth a shot to make it and have something completely custom. I have also been looking at some CF styles but those are not conjoined already, and they also don;t have the 2 into one on the back. These just seem like they are almost ready to go.

[Hellgate]

It may just work. Being an auto muffler any idea what it might weigh? Another thing to consider the routing of the pipe into the muffler. All of the aftermarket FZ systems I've seen all route to the right hand side of the bike. The "trunk", under the seat is formed around the exhaust pipe. I'm wonder if you will have enough room to make a fairly sharp turn in the exhaust pipe in order to have it line up with the collector on the muffler?

I don't think it will look ghetto at all. It should look pretty clean. The nice thing is you will not need, as HavBlue puts it, "hose-clamps" to hang the mufflers. Like you said its only $100, sounds like fun!

Obviously, we want to see photos as things develop.

[reiobard]

good point about the "trunk" I will have to take a look at that, if it seems like it will be an issue then i will just go with the 2 seperate cans of the same size and then make the pipes from the back of the canisters, and do the 2 to 1 in the middle or at the FZ's mid-pipe.

I too have been working on this side of getting an exhaust. The bend are a big concern for me as the dual outlet of the stock system is created in the muffler. The aftermarket as shown above is done through the use of an unequal Y and I have heard the left tube is not outputting what the right is. I happen to like the look of the factory back end so no bends for me as it is going straight out the right side at 1.75". A 12" glasspack with a 1.75" ID and 3.5"OD is less than $20 and it can be powder coated for $35. The glasspack can be welded to a piece of stainless steel slip fit tubing for $30 around here. I am however thinking of weight and searching for slip in baffles. Pete had posted the factory exhaust weight of 12lbs. I would like to get the whole thing down under 5lbs. I'm not too concerned about the dbA but I do want quality sound. Now all I need is some warmer weather.

[Boneman]

You could always purchase just the FZ6 'Y pipe' section from one of the aftermarket companies. From there, I'm sure you could then get some reducers or whatever clamps needed to join the mufflers and Y pipe together. If worse came to worse, you could take the whole assembly to a muffle shop for them to fit and/or weld the two together.

[firsttimefz]

has anyone ever heard of somebody transplanting an r6 muffler onto our bike, it's got the same sorta shape, except i think the r6's are a single outlet, i might be wrong, any thoughts?