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Discussion Starter · #1 ·
I am think about getting a Muzzy full exhaust but I don't know what jet kit to buy for it? Can anyone recommend one to me.
I have a 2002 6r, bone stock.[?]
 

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geozx6r,

First of all, there are far better headers out there than the Muzzy. Muzzy's work fine, but they are about as cheap as you can get. I install a lot of headers but I always discourage using Muzzys or Yosh pipes. The fit is usually very difficult, sometimes so bad you'll think you've got the wrong header. I always get them installed, but they're a pain in the neck, most of the time. The higher end pipes, such as Micron are always a perfect fit and a far have better build quality.

Dynajet and Factory both make excellent jet kits. You'll have to make some jetting adjustment when installing a header anyway. Consider also the Flo-Commander as this will have an even greater impact. Personally, I prefer the Dynajet over the Factory as they tend to be a bit more involved and make somewhat greater degree of correction, but both will take care of the jetting correction.
 

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I have to disagree about Muzzy's and Yosh being cheap. Whatever, they sponsor more people than Micron. More streetbikes have them also. Muzzy sponsors Ricky Gadson and Ryan Schnitz. Most Suzuki racers have Yosh sponsors. I have a full Muzzy on my 6 and like it very much. Micron would of been second choice only for color selections and finish, but from full system specs I've seen they haven't done crap for performance on the ZX6R.

I would go with Factory or Ivans kit. I also heard Factory made better kits than Dynojet at least for Kawasaki's. Search around the net and other messageboards.

Also make sure to not get the cheaper aluminum/rivet style can. Get newer polish/stainless or titanium/carbon styles. Also I got pictures of my system somewhere on this board if interested.
 

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Discussion Starter · #4 ·
I did look into Ivan's Kit but he says that it's designed for the 98-99 Muzzy Exhaust. I called and asked if the 98-98 fits on my 02. He said that it did. I looked up the stock exhaust part # and:
the 98-99 part # is 39178-1263
the 00-02 part # is 39178-1318
So do they or don't they?

If you doin' the speed limt, get da F**K outta my way!!
 

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so what kinda gains are we looking at with a full exhaust and rejetting? Let say best case scenerio....5-7 HP on the top?


My Drinking Team Has a Racing Problem!
 

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Originally posted by geozx6r

I did look into Ivan's Kit but he says that it's designed for the 98-99 Muzzy Exhaust. I called and asked if the 98-98 fits on my 02. He said that it did. I looked up the stock exhaust part # and:
the 98-99 part # is 39178-1263
the 00-02 part # is 39178-1318
So do they or don't they?

If you doin' the speed limt, get da F**K outta my way!!
The pipes fit, the only problem I had was Muzzy shipped the wrong mid pipe section with the set. I would like to splice open the collector to see a true 4 into 1 and 4-2-1 design.
 

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Some clarification. I install many headers of all types and brands. Perhaps the most important single factor for my shop is what I call 'fitment', or how the pipe fits. The most difficult, by far, has been the Muzzy and Yoshimura. More often than not the pipes hit somewhere. They generally smack into the oil filter, radiator, oil pan, frame, etc. Usually I am able to make some sort of modification, short of cutting, welding, of some other nasty modification. More often than not when servicing a bike, I find that the header is smashed against something. The owner never has a clue.

I used the Micron only as an example of a header that has yet to present any sort of problem on any application. From time to time I also have to replace the muffler packing. With the Muzzy or the Yosh, the end cap's stainless steel rivets must be drilled out first and re-riveted, while all the Micron canisters have a clever removal system. There are many other top quality systems out there as well, but the Muzzy and Yosh aren't among them.
As with so many other products, the most popular and readily available has little to do with a product’s actual value. Often times the best items are downright rare and relatively unknown. We are often motivated by marketing (as in Harley Davidson) and not by quality, engineering, or any other meaningful factor. It’s very easy to fall into this trap.
 

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I understand about how some of the cans have rivets. That's why I went with the new Muzzy polish/stainless it has allen head screws instead of rivets. I've seen many of old Muzzy style aluminum cans on bikes and a few years they kind of look like crap.

I also think Micron is top notch but I was looking for most performance for the dollar at the time, and didn't think much about all the weld bands on the Micron Headers and couldn't find good performance numbers for the ZX6R.
 
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