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Discussion Starter #1
I don't really know too much, er nothing about exhaust systems but willing to learn via trial and error, so here's what I'm thinking about tinkering around with on a ex500 that a friend gave me to repay a debt...I already have my own ex500 so I haven't ridden this one too much and really don't mind using it as a guinea pig to get my tinkering fix on... :p

I've read of people de-baffling their cans and started thinking, well wouldn't the de-baffled can now for the most part be considered a totally different exhaust pipe all together? And, if so why couldn't a pipe that isn't made specifically for the ex500 be modified to work for that application? I have access to an exhaust bender if it comes down to fabricating entirely new tubes, I know how to weld, maybe not the cleanest of welds..but hey they do hold.

What I was wondering if I were to take for example any exhaust pipe (I have 6 different pipes to play with, stock & after market) and fabricated the fittings to mount properly on the ex500...wouldn't all I need to do would be to re-jet the carbs?

Any thoughts on this...positive, negative or random flames welcomed!

Thanks
 

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As all here know, I'm generally down on noisy mufflers. This note is only about $. Don't mess up those stock cans, they are worth more as is to sell to people who messed up thier stock cans. Play with one of the other systems you said you have. they are all the same. none will do anything except make a varity of Fart Fart noises.

FOG
 

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FOG said:
As all here know, I'm generally down on noisy mufflers. This note is only about $. Don't mess up those stock cans, they are worth more as is to sell to people who messed up thier stock cans. Play with one of the other systems you said you have. they are all the same. none will do anything except make a varity of Fart Fart noises.

FOG
2nded. Stock exhaust always goes for more than I'd have ever thought (or would pay, that's why I still have old, gutted cans). Gutted cans sound better than stock (to me and everyone who's commented on mine), but I only had the choice of having one mangled, half-gutted can or just gutting them both. If I had nice cans and enough stuff around to make my own exhaust I'd leave the cans alone and start fabbing.

EDIT: Also, read up on adjusting the pilots. You don't need to rejet with a different exhaust, just adjust things back to optimal.
 

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Discussion Starter #4
I'm sorry maybe me talking about the de-baffling cans confused what I was trying to get across. What I meant was, there are a handful of exhaust pipes/systems that are made for the ex500, and there are other pipes/systems that aren't tailored to fit on the ex500. If I fabricated the fittings and bolt-up areas on one of the pipes not made for the ex would it in theory work?

thanks, oh yeah...I'm not messing with the stock cans that are on the bike now, keeping those for back-ups on my ex.
 

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If you can make it fit then it'll do the job. All they're doing is carrying exhaust gas from the header to the atmosphere and diffusing the sound on the way. Where you're going to have problems is if the backpressure is greatly altered. If you greatly increase the backpressure, all other things the same, you're going to be running excessively rich. If you greatly decrease it, you'll go lean. Adjusting the pilots should take care of it.

Chances are, anything else you throw at it is probably going to decrease the backpressure since it's most likely coming from a larger displacement bike. Seeing that I've run mine w/ no mufflers at all before (just in the garage for a few minutes, nothing permanent) I don't foresee it not running at all just because you put on a different pipe.

You may have gathered this from other threads, but we all love to see pictures :). Be sure to share if you make any headway.
 
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