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Kawi claimed the Gen 5 pipes were designed/influenced by Akra pipes in wsbk. I can see similarities some. Akra were using cross tubes I think since my Gen 1. Def had them on my Gen 2.
Arrow use balance pipes alot too typically on systems with the flow and bore that lowers backpressure so much for top end power the balance is needed to maintain exit flow.
 

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Formerly CLCRACINGAaron
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475 Posts
The OEM gen5 headpipe is nearly perfect for peak power. It's the midrange that the aftermarket full systems are good at boosting. Brock Performance has a few videos explaining this through Gen5 dyno run comparisons.
 

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Я - Ребен&#108
2021 ZX10R Street & 2016 ZX10R KRT Race build
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Discussion Starter · #348 ·
What brand is the new ECU?
It's Bosch... I think most of the IMU stuff is all Bosch now...same as in the BMW with Kawi coding/Programing. Makes me wonder if thats whats in the new R1 also. That could explain why it's hard to crack and code them....well...legally.
 

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Я - Ребен&#108
2021 ZX10R Street & 2016 ZX10R KRT Race build
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Discussion Starter · #349 ·
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The way the 2021 Headers look.... I am willing to bet the have pre-cats in the collector tubes....They are different from the Gen 5 a little.
I do think Ill go full Akra. The pipe look like it bottle necks right infront of the cats...where the sensor plugs in.

I wonder when the new Akras will be ready.

2021
View attachment 447349
ciao Von,
I just ordered my new one, but it shall arrive at the end of april ... because kawa give priority to USA market, larger than EU one .... so the euro5 standard cause a cost levitation and then ... as special price we'll the last :)

btw, it seems that the headers are really bended to fit the oil cooler, so does the gen5/2016-2020 header one really able to fit ?
I would use an oem muffler from 2016-2020 on 2021 (with a middle decat pipe) to limit loud (italian track circuit block access over 99 db), do you think that it shoule be possible ?
It seems that the '16 muffler is really shorter than '21.

thanks,
gino
 

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Я - Ребен&#108
2021 ZX10R Street & 2016 ZX10R KRT Race build
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3,756 Posts
Discussion Starter · #353 ·
ciao Von,
I just ordered my new one, but it shall arrive at the end of april ... because kawa give priority to USA market, larger than EU one .... so the euro5 standard cause a cost levitation and then ... as special price we'll the last :)

btw, it seems that the headers are really bended to fit the oil cooler, so does the gen5/2016-2020 header one really able to fit ?
I would use an oem muffler from 2016-2020 on 2021 (with a middle decat pipe) to limit loud (italian track circuit block access over 99 db), do you think that it shoule be possible ?
It seems that the '16 muffler is really shorter than '21.

thanks,
gino
Ive seen different Gen 5 full systems used on the Gen 6, but the headers are usually VERY close or sitting on part of the oil cooler. That defeats the purpose, and scare me if the heat/rubbing do something and have hot oil spray out from that location. Ill wait for Akra....they never ever release a product with out testing.
 

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Я - Ребен&#108
2021 ZX10R Street & 2016 ZX10R KRT Race build
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Discussion Starter · #355 ·
Anyone run across anything new...part wise? see any finished race fairings?
 

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Я - Ребен&#108
2021 ZX10R Street & 2016 ZX10R KRT Race build
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3,756 Posts
Discussion Starter · #356 ·
SO kaw went with a more OEM shaped front fairing vs. that massive fairing they had tested back in Oct/Nov....

Here is the new more OEM fairing they are testing now.... I have to say ... I like the 2020 test fairings...

447602

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Here are the 1st test ones in 2020....


447604

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447606

447607
 

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Я - Ребен&#108
2021 ZX10R Street & 2016 ZX10R KRT Race build
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3,756 Posts
Discussion Starter · #358 ·
I believe its the same fairing but they used the new tail piece for the first time today, Rea quoted it was faster.
you can literally see the front fairings are different. The one they are testing now are shaped like OEM front fairings....the one from 2020 has a lot more bottom wing and central air separators .
 

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Я - Ребен&#108
2021 ZX10R Street & 2016 ZX10R KRT Race build
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Discussion Starter · #359 ·
The tail has bolt on scoups.
looks pointless....but visually nice.

447608
 
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