Gen4 to Gen5 Exhaust Compatiblity - Page 2 - Kawasaki
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post #11 of 15 Old 06-17-2017, 04:31 PM
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Some full systems also dont fit depending on the brand. For instance my gen4 Mivv headers weren't able to clear the hard oil cooler lines on my gen5.
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post #12 of 15 Old 06-17-2017, 05:09 PM
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look at them
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scout and Lanister like this.
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post #13 of 15 Old 07-04-2017, 10:10 AM
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here is the thing....
When I installed the gen5 on the gen4, felt a difference especially on the mid range... but the dyno showed at WOT some improvement but not much... but the bike was faster on the street.

then did the mod on 2 gen4s that I tuned (filter, exhaust, flash) both made 179hp. both guys called me like WAO how responsive the bike is now, that it felt like a different bike, their words is that they need less gas to get to same speed and the bike feels better...

I will have one of those bikes dyno again to see.... but all 3 guys have good seat on the pants wao results for a cheap mod...

you have to cut the gen5 exhaust like 1 inch in the mid pipe..
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post #14 of 15 Old 09-08-2017, 09:46 AM
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I recently did the reverse operation. Full Gen4 Akrapovic exhaust in my new Gen5.
There were no problems except that I needed a smaller lamdba nut, and the intermediate support did not exist. Solved with a metal flange.

ZX10R 2005, Kevlar brake hoses, Lowering bones, Intake kit camshaft, Leovince Evo2 full Exhaust, Brembo master brake 19x18, Fiberglass fairing, Brembo M4 Calipers, PVM Wheels, Axis front Rotors.
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post #15 of 15 Old 09-08-2017, 12:10 PM Thread Starter
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Clearly, Gen5 headers are better designed. To be economical, I thought about moving my Gen4 exhaust to Gen5, which would have included moving the headers as well but I am glad I didn't. New Graves pipe looks damn hot. :)
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