Quote from: rob1bike on December 13, 2006, 05:58:08 PM
Ok, don't drill your pipe, I did, sounded like a lawnmower fighting a swarm of hornets. If you do drill it, drill holes small enough to put screws in when you decide you hate it!
Wileyco sounds much much better!

I drilled 3 holes in my stocker.  I like the sound better with the holes, and it seemed to run a bit free-er after I drilled.

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As for the debate about the header of the gs, seems like the pipe is plenty big to handle the exhaust flow. The motor can only make so much flow, stock. Dollar per hp seems as though its not at all worth it. Just my opinion though.

$250 bucks for a Yosh is pretty damn cheap...but yeah, that same money would go a long ways towards improving the suspension or tires on an otherwise stock bike as well.  If you've already got a different shock and stiffer fork springs, why not spend half a paycheck on a full system?  I won't argue your values though...everybody is different.

Quote from: ixolas on December 13, 2006, 08:28:20 PM
I'm not trying to be a jerk or anything but anyone looking to add major hp isn't going to get it unless they modify the engine, and I mean bore/stroke or add spray to it (which can be done for about the same price as a top end exhaust). 

Major HP on a GS=cams and displacement, along with porting and big carbs.  Or a turbo.

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If you get two staws: a thin coffee stiring straw then a bigger staw and attach the larger straw to the opposite end of where you blow through  the thinner straw.  Does it make it any easier to blow through the thin coffee straw? 
The restrictive part to the exhaust is the header, then the pipes, and then finally the exhaust.  So any significant gains would be found getting a wider exhaust header, tubing, and then a muffler.

That's why a full exhaust system is the only way to actually change the characteristics of the engine beyond sound (as stated above).

250 bucks, if you can even find a yoshi, and gooood luck. For like 2 hp? Your not gunna pull and extra 10 or 15 hp out of her.
I've put headers on a few cars that actually had restrictive stock pipes and the difference would make you grin from ear to ear! That's not happening here. But more power to ya if that's on your list of mods! 
One of my other bikes is a kz750, with a rejet, pods, and a kerker pipe she'll ripe your arms off. That's what I'd expect.
Again what ever floats your boat!

I found one for 250 with a jet kit...

Have you ridden a GS with a Yosh?

No I haven't, but I know what 2hp doesn't feel like.

When in Rome...

so a full system is better than a slip on?

A full system is better than a slip on if you can afford it. Full exhausts are expensive - and unless you just like modding and have spare cash around its not really worth it on the GS.

Like Ixolas said you need both less restrictive headers as well as exhaust. The GS simply isnt capable of giving you great performance boosts.

oh i c thanks

Quote from: Mk1inCali on December 13, 2006, 09:31:36 PM

$250 bucks for a Yosh is pretty damn cheap...but yeah, that same money would go a long ways towards improving the suspension or tires on an otherwise stock bike as well.  If you've already got a different shock and stiffer fork springs, why not spend half a paycheck on a full system?  I won't argue your values though...everybody is different.

Don't forget that Yosh pipe is mine!!! 


j/k


I want that piipe so damn bad

So this yoshi exhaust is a full system or slip on? is it better than others?

full system....but it's discontinued 

oh really? dang that sucks! i bet you could probably get them on ebay? i wonder why they discontinued it? they have one in ebay for an R6 see

http://cgi.ebay.com/ebaymotors/New-YOSHIMURA-RS3-Slip-On-Exhaust-Yamaha-YZF-R6-R-6_W0QQitemZ230065850258QQihZ013QQcategoryZ35596QQrdZ1QQcmdZViewItem

Quote from: GON on December 14, 2006, 12:41:04 PM
oh really? dang that sucks! i bet you could probably get them on ebay? i wonder why they discontinued it? they have one in ebay for an R6 see

http://cgi.stanford.edu/~sanjayd/gs500/Upgrades/Exhaust

First thing on there...

QuoteFull systems
Yoshimura

Although discontinued in 1994, the Yoshimura full exhaust system is said to produce the most power of any full system for the GS500.

So yeah... reading... I post the Wiki whenever you ask a question for a reason, dude.

lol i c thanks

now what if you put a yoshi R6 exhaust in the gs, since they discontinued it? ok yea nevermind its a full system

Quote from: GON on December 14, 2006, 03:30:53 PM
now what if you put a yoshi R6 exhaust in the gs, since they discontinued it? ok yea nevermind its a full system

What?

You can't stick a full system from a 4-cylinder bike on a GS (which is a 2-cylinder bike). Not unless you have some mad crazy tube bending and welding skills. Yoshimura discontinued the GS500 full system, not other bikes'.

Hey alpha can you make a gs sound like or even a little like a big bike?

anyone know what type of exhaust is this?

http://www.youtube.com/watch?v=MhLUM_5H9cc

70 Cam Guy has a YUMMY sounding WileyCo.