2012 HRC exhaust change. - Page 2 : Honda CBR 1000RR Motorcycle Forums: 1000RR.net

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Old 11-07-2012, 07:58 AM   #11
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The stock header is A2 stainless steel... aka 304 stainless here in the US..
It still rusts of course... it just takes much longer to do so... its corrosion RESISTANT.. not proof.


as far as the design goes.. its already awesome.. there isnt really any power to be gained there.
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Old 11-07-2012, 10:02 AM   #12
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Huh, guess I was wrong but they sure did look like titanium, I saw it at the Honda booth that sucker was bone stock, I'm prolly wrong tho since titanium obviously doesn't have a magnetic property. Still I wouldn't see like yoshi making a inferior product to the stock system
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Old 11-07-2012, 10:55 AM   #13
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Originally Posted by MrDude_1 View Post
The stock header is A2 stainless steel... aka 304 stainless here in the US..
It still rusts of course... it just takes much longer to do so... its corrosion RESISTANT.. not proof.

as far as the design goes.. its already awesome.. there isnt really any power to be gained there.
Yup. My down pipes developed a nice matt finish of surface corrosion. Turned them a pretty shade of UPS brown. As for the actual design, it's not at all bad (actually, all factory header systems these days are pretty damn good).
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Old 11-07-2012, 11:19 AM   #14
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Huh, guess I was wrong but they sure did look like titanium, I saw it at the Honda booth that sucker was bone stock, I'm prolly wrong tho since titanium obviously doesn't have a magnetic property. Still I wouldn't see like yoshi making a inferior product to the stock system
they are still stainless.. so when they're new, once they've been heated on a motor, they turn a nice golden color... most stainless headers do this.


Header design involves tradeoffs... you can easily make more PEAK power, if you are willing to do a design that is less efficent elsewhere..

the Yoshi system (and all good aftermarket headers) are tuned so they do create more peak power... however you have to understand they will lose power elsewhere to do so.

the OEM header makes a large amount of power everywhere.. it doesnt choke the motor... but going to a shorter or larger header design, will increase peak numbers... and thats how they sell aftermarket headers... but in real street riding... it actually sucks worse then the stock header.

as far as the racetrack goes.. unless you're in the A group runnin ohlins, slicks, etc.... its just a waste of money.

if you're drag racing only... sure. go for it... but you probably want to find a different bike to drag race anyway... drag racing the new CBR is like autocrossing a pickup. you can do it. its fun. but there are better vehicles out there to start from, that you wont even touch because you're starting from so far behind the curve.
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Old 11-07-2012, 01:43 PM   #15
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Thanks everyone
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Old 11-07-2012, 04:02 PM   #16
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Drag racing the new CBR is like autocrossing a pickup.
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