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Old 03-27-2017, 09:13 AM   #106
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Originally Posted by vr2turbo View Post
Now looking at your extractor, the 2 to 1 joint before the flexible bellow, does not look smooth/straight. A bit bent at an angle......
If you look at the stock unit, there's a kink after the flexible joint. I think the bend which you are referring to is to avoid that.
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Old 03-27-2017, 11:52 AM   #107
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Your engine bay has a lots of space between the header and the radiator fan. Can put one of those fancy extractors with long runners. Mine doesnt have such space


Mine is even worse haha had to grind off the fan bracket a bit to clear the runners
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Old 03-27-2017, 12:02 PM   #108
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Yes, that's stock
Interesting that stock 4G93 headers are actually 4-2-1 configuration. I thought most manufacturers will use a short 4-1 header to save cost.
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Old 03-27-2017, 12:04 PM   #109
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Interesting that stock 4G93 headers are actually 4-2-1 configuration. I thought most manufacturers will use a short 4-1 header to save cost.
even 4g92 sohc also stock came with 4-2-1.... but with shorter runner....and casted
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Old 03-27-2017, 12:20 PM   #110
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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even 4g92 sohc also stock came with 4-2-1.... but with shorter runner....and casted
Means it is still not as effective as an aftermarket 4-2-1 with longer runners?

I heard Wira SE comes with 4-2-1 as well but I think it is differently designed compared to what I installed.
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Old 03-27-2017, 01:58 PM   #111
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Mine is even worse haha had to grind off the fan bracket a bit to clear the runners
Your header different mah! even can scratch the bottom.........
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Old 03-27-2017, 02:00 PM   #112
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Means it is still not as effective as an aftermarket 4-2-1 with longer runners?

I heard Wira SE comes with 4-2-1 as well but I think it is differently designed compared to what I installed.
If you look at stock exhaust, 2 to 1 start at the curve in front on the engine. Aftermarket joins at under the engine near the flexible bellow....
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Old 03-27-2017, 02:18 PM   #113
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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If you look at stock exhaust, 2 to 1 start at the curve in front on the engine. Aftermarket joins at under the engine near the flexible bellow....
Yeah. But why stock ones join so early? Save costs again?

Does this kind of joining early setup offer any advantage over aftermarket? Or aftermarket is totally better in every aspect?
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Old 03-27-2017, 02:22 PM   #114
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Yeah. But why stock ones join so early? Save costs again?

Does this kind of joining early setup offer any advantage over aftermarket? Or aftermarket is totally better in every aspect?
Stock as far as I know is tuned to be average in everything, power, consumption etc. etc.....you would have heard people complain loosing low end, gain high end and all those stuff, right?
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Old 03-27-2017, 02:39 PM   #115
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Stock as far as I know is tuned to be average in everything, power, consumption etc. etc.....you would have heard people complain loosing low end, gain high end and all those stuff, right?
Yes I have. But after installing my 4-2-1 extractor, I can say that I felt no losses anywhere. Is better than stock in every aspect so far. There is a very slight increase in exhaust sound but I am okay with that.
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Old 03-27-2017, 03:58 PM   #116
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Originally Posted by RENESIS VIII View Post
Means it is still not as effective as an aftermarket 4-2-1 with longer runners?

I heard Wira SE comes with 4-2-1 as well but I think it is differently designed compared to what I installed.
it was effective to some extend...


for daily stock use and better fc....YES...


but for speed freak and different engine powerband tune, definately not... coz out of their designated workscope....
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Old 03-27-2017, 04:39 PM   #117
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Default Re: How to remove burnt oil stains on SS exhaust extractor

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Originally Posted by ^pomen_GTR^ View Post
it was effective to some extend...


for daily stock use and better fc....YES...


but for speed freak and different engine powerband tune, definately not... coz out of their designated workscope....


If aiming for top end power, 4-1 should be better.
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Old 05-22-2017, 02:05 PM   #118
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Default Re: How to remove burnt oil stains on SS exhaust extractor

There is a product called "magic stain" made by Yoshimura. it is 10x lesser effort than autosol. I highly recommend this.
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