Question regarding cat removal. - Page 2 - Yamaha R6 Forum: YZF-R6 Forums
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post #11 of 40 (permalink) Old 02-02-2010, 02:49 PM
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Re: Question regarding cat removal.

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Originally Posted by pickpocket293 View Post
^^^ Misinformation.


Because from the factory they were MAPPED to run with that setup. The newer ones are made to run with a Cat and honeycombed headers.

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post #12 of 40 (permalink) Old 02-02-2010, 02:49 PM Thread Starter
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Re: Question regarding cat removal.

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Originally Posted by pickpocket293 View Post
????????
Its not an aftermarket slip on
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post #13 of 40 (permalink) Old 02-02-2010, 02:51 PM
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Re: Question regarding cat removal.

hmmm, what did you get? if it is not stock, it is aftermarket.


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post #14 of 40 (permalink) Old 02-02-2010, 03:06 PM
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Re: Question regarding cat removal.

Quote:
Originally Posted by pickpocket293 View Post
^^^ Misinformation.


Because from the factory they were MAPPED to run with that setup. The newer ones are made to run with a Cat and honeycombed headers.

in all my years of modding and racing bikes and cars I have never once in my life heard of ill effects from a slip on running w/ a stock header. Correct me if im wrong. Im not here to argue just have a friendly discussion.

so if one bought the mjs and the mjs exhaust your saying they would need a pc for that as well?

Because what I get from what your saying is that the bikes were mapped for stock systems from the factory(obviously no argument there) so that means we would need power commanders for just slip ons then, if what your saying is true. So if what your saying is true than anyone with a slip on essentially needs some form of fuel management? And this is where I disagree.

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post #15 of 40 (permalink) Old 02-02-2010, 03:12 PM
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Re: Question regarding cat removal.

third gen r6's are tuned to run with the cat. if the op gets rid of it, he's messing with this setup. it'll mess with your valves and causes loss of backpressure. it also messes with your fuel/air ratio thus requiring a re-map.


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post #16 of 40 (permalink) Old 02-02-2010, 03:17 PM
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Re: Question regarding cat removal.

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Originally Posted by r3x1mu5 View Post
third gen r6's are tuned to run with the cat. if the op gets rid of it, he's messing with this setup. it'll mess with your valves and causes loss of backpressure. it also messes with your fuel/air ratio thus requiring a re-map.
I would agree this is the case with full systems but do you have any evidence of what your saying

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post #17 of 40 (permalink) Old 02-02-2010, 03:25 PM Thread Starter
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Re: Question regarding cat removal.

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Originally Posted by r3x1mu5 View Post
hmmm, what did you get? if it is not stock, it is aftermarket.
Its Custom. I will post pics and sound once finished. @ a fraction of the cost it sounds twice as beasty.
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post #18 of 40 (permalink) Old 02-02-2010, 03:26 PM
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Re: Question regarding cat removal.

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Originally Posted by kaoss_11 View Post
I would agree this is the case with full systems but do you have any evidence of what your saying
dude, he is essentially getting a full system. modified headers with no cat + slip-on exhaust is pretty close to a full system.

if he was just getting a slip on, then there is no need to get a pcv or bazzaz unit.

edit: correct me if i'm wrong


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post #19 of 40 (permalink) Old 02-02-2010, 03:28 PM
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Re: Question regarding cat removal.

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Its Custom. I will post pics and sound once finished. @ a fraction of the cost it sounds twice as beasty.
anything not oem is aftermarket, be it yosh leo hr1 or in your case custom. if your custom exhaust has no baffle then be prepared
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post #20 of 40 (permalink) Old 02-02-2010, 03:30 PM
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Re: Question regarding cat removal.

Quote:
Originally Posted by r3x1mu5 View Post
dude, he is essentially getting a full system. modified headers with no cat + slip-on exhaust is pretty close to a full system.

if he was just getting a slip on, then there is no need to get a pcv or bazzaz unit.

edit: correct me if i'm wrong

Wrong the oem headers primaries are smaller than aftermarket headers and the bends are different coming off the head as well.

I ask you this. you have a r6s correct. So if you buy a slip on do you need some form of fuel manageament? ie pc3 pc5 bazz etc

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