I haven't been here long, but one of the parts that needed replacing/ fixing on my resto-mod was the exhaust. It was all rusted out on the header or down tube. I'm thinking it would be pretty easy to make my own exhaust, so that it looks and flows a little bit better. It would be easy to make two outlet tubes and bring them to a collection point, then a tube to follow the crankcase and up to the muffler.

Short of that, what are the after market exhaust options for the GS? I've searched and seen some alternatives but nothing concrete like ___________ will bolt straight up. What will fit with some modifications?

Thanks for any input, and its an 89 GSF 500E if its important.

Chech the FAQ section and the WIKI.  That will answer all those questions.  Jardine makes a full system that bolts right up.  Yoshi makes a half system, sometimes you can find the old full system they made. 

But check the WIKI for sure.

There is not a complete exhaust from a different model bike that will bolt right on. They headers are the main fit problem. There may be headers that could be cut to fit.
There are plenty of options with fitting other exhausts after the Y in the stock header, this is the common mod.

I have an undertail exhaust using Duc 999 midpipe with a shortened Mircron CF can on my 92 and a ZX1100 Yosh can & midpipe on my 97.

A copany named Nexus makes a full system but it is sooo pricey. Even buying the headers alone is over #300. They are Stainless steel though. I am currently looking for SS or titanium headers myself.

  -Anti 

Ive just bought a new bike for a project , a 2001 gs500., to swop my custom gs 1996 parts over , it comes with a full Lazer Exhaust , which Has Stainless pipes , im more than likey gonna sell the exhaust so , eyes peeled!

im about to go out and start working on my exhaust tonight.    The H pipe is getting removed first and sometime later this week Ill be making a in the pipe muffler.

Edit: just chopped out the H pipe....   theres a little more bark to it now, but not much...     also, surprisingly there is only a 3/8" hole connecting the two pipes, not a large 1 1/4" hole as the connecting pipe would have you believe.    Ultimately it is really not worth the work, unless your just going for the vance and hines type.... probably just a slightly smoother flow of exhaust gasses.

Quote from: Foximus on December 20, 2007, 03:36:38 PM
im about to go out and start working on my exhaust tonight.    The H pipe is getting removed first and sometime later this week Ill be making a in the pipe muffler.

Edit: just chopped out the H pipe....   theres a little more bark to it now, but not much...     also, surprisingly there is only a 3/8" hole connecting the two pipes, not a large 1 1/4" hole as the connecting pipe would have you believe.    Ultimately it is really not worth the work, unless your just going for the vance and hines type.... probably just a slightly smoother flow of exhaust gasses.

Thats exactly what I was thinking. My buddy has a TIG welding set up and pipe bender. I was thinking of making a big collector right out of the block like you see on an FMF exhaust for a dirtbike. But if its only a 3/8" hole in the exhaust that hardly seems worth the trouble.

Think it would be worth the time to just chop the 'H' out and seal it up so its two pipes with no connector?

QuoteThink it would be worth the time to just chop the 'H' out and seal it up so its two pipes with no connector?

thats exactly what I did.    It made it a little more harsh sounding, but not very.   You really wont notice the difference unless you either
A) remove the Y pipe and run true dual exhaust, or
B) run open pipe, with the cut being immediately or a just a few inches behind the Y pipe.   


I intend to try both of these, in opposite order.

Quote from: Foximus on December 20, 2007, 09:35:28 PM

QuoteThink it would be worth the time to just chop the 'H' out and seal it up so its two pipes with no connector?

thats exactly what I did.    It made it a little more harsh sounding, but not very.   You really wont notice the difference unless you either
A) remove the Y pipe and run true dual exhaust, or
B) run open pipe, with the cut being immediately or a just a few inches behind the Y pipe.   


I intend to try both of these, in opposite order.

I don't have the balls to try true duals yet, just started tinkering with the bike two weeks ago. Let me know how either of your experiments go though and I'll try my own out.

What are the advantages of dual pipes? Do you just have them seperate or go 2-1-2?

James

Quote from: Anakist on December 21, 2007, 10:44:24 PM
What are the advantages of dual pipes? Do you just have them seperate or go 2-1-2?

James

It would technically create a better flow. It would go from 2 pipes from the block, into a collector into the muffler.

could always get two stockers, and somehow graft one side onto the other. i had started that, then gave it up when i sold my gs

Quote from: Ski1215 on December 21, 2007, 11:17:04 PM

Quote from: Anakist on December 21, 2007, 10:44:24 PM
What are the advantages of dual pipes? Do you just have them seperate or go 2-1-2?

James

It would technically create a better flow. It would go from 2 pipes from the block, into a collector into the muffler.

thats a 2 into one.  Basically the same thing the stock exhaust is already.   

a true dual is harder to tune to get optimal because you actually have to use the muffler as a sonic "tuning fork" so each exhaust pulse is scavanged.   In a 2 - 1 you dont have to worry about that as much, but you also wont get as high as performance as a true tuned dual.

Running true seperate duals gives you a much lumpier sound.   

does your buddy have a pipe bender or a mandrel pipe bender?

he needs to have a mandrel if you want better than stock

Quote from: werase643 on December 22, 2007, 08:47:11 PM
does your buddy have a pipe bender or a mandrel pipe bender?

he needs to have a mandrel if you want better than stock

Not sure what hes got. I've never been to his shop, just four wheel with him in our club. I know he made these headers for a turbo civic he built.