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I would like to pipe and jet my 98 ZX-6R. I am looking at muzzy full system or a yoshimura RS-3 slip on. It depends on how much money I want to spend. I’m trying to add another bike to my collection (03 ZX-6R). I also will be putting a jet kit on my bike. Does anyone have any opinions on the muzzy or the RS-3. I think I will get more power form the muzzy because it’s a full system. And how about the sound? Will one or the other be harder to tune? Is it worth the money to take I to my local performances shop and have them tune it on their dyno. That will cost me about a 100-125 clams. I was looking at a dynojet jet kit or a K&N. Any opinions on jet kits. I am mechanically inclined and I have a good friend who went to MMI. (He went for Honda, that trader). So I don’t think jetting my bike will be hard. I just don’t have a dyno to get max power.



matthew
98 ZX-6R
97 CBR F3
 

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Dynojet kits come with enough of a wide range of needles you can tune by trial and error if you're mechanically inclined. Sound comes from the end can design, so the full system vs. endcan only debate isn't important, it's the Muzzy endcan vs. Yosh endcan... and it just so happens I ride with 1 guy with a Muzzy, 1 guy with a Yosh endcan on zx6r's... the Yosh is less noisy than the Muzzy, although it sounds good don't get me wrong, it's very clean sounding, maybe a bit deeper and gruntier and less noisy at high revs. Muzzy sounds less restricted to me. It's nice having your bike dyno'd for 2 reasons: it shows you small "dips" in the powerband that you can wrinkle out and helps set your jetting, and secondly... well, don't ya wanna know how much HP you added with these trick new parts???

I'm guessing you'll add between 6-9 hp with the endcan and jet kit, and maybe about another 2 if you go full exhaust system. Seems typical with all the tests I've looked over...
 
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