03-31-2015, 01:14 AM | #1877 |
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03-31-2015, 02:50 AM | #1879 | |
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Regarding a retune, I know I will need one, so I am planning on just getting the JRSC tuner kit and not the CARB version since I will need a custom tune anyway. Naver's registration process sucks. But you can still register as a foreigner, I believe. |
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03-31-2015, 10:54 AM | #1880 | |
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03-31-2015, 11:22 AM | #1881 | |
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Basically, get catless headers and replace fp cat with a high flow one (or go catless there as well if you spouse/significant other or you doesn't mind gasoline stink). You CAN run it without a tune, but you will only see minimal gains. You need the retune to take advantage of the extra power now available to you by removing the restrictions.
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03-31-2015, 12:04 PM | #1882 |
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Why is this? I always figured that restriction is restriction, no matter where it is in the exhaust system.
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03-31-2015, 12:32 PM | #1883 |
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It has a lot to do with exhaust scavenging/header collector design and as little pressure as possible near the exhaust valves.
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03-31-2015, 12:39 PM | #1884 | |
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Think of how lane restrictions slow traffic on roads. Where is a single lane restriction more disruptive to smooth traffic flow? When normal flow is faster (like on a freeway) or slower (like on the street)?
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03-31-2015, 02:13 PM | #1885 |
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03-31-2015, 02:15 PM | #1886 | |
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@SirBrass is correct; always get a tune/retune to get the most out of the parts you're putting on the car. |
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03-31-2015, 02:18 PM | #1888 |
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You're making a header specifically for gains with the JRSC? God dammit. Now I have to wait on headers... (UEL please)
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03-31-2015, 02:28 PM | #1889 |
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03-31-2015, 03:02 PM | #1890 | |
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