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What headers to use 05 sti

Old 24 March 2019, 11:32 AM
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ovadrive
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Default What headers to use 05 sti

Hi just wondering what headers and uppipe to replace existing ones as leaking. It's a 05 sti with a jdm engine sc46 turbo. Last time on rollers made 419 as existing ones are leaking was told by mapper after he mapped it. Would I need a map tweak after replacement. Thanks in advance for any info and best place for mapping.
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Old 24 March 2019, 12:22 PM
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1509joe
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Take it its twin scroll.
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Old 24 March 2019, 12:24 PM
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ovadrive
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Originally Posted by 1509joe View Post
Take it its twin scroll.
sorry fsort to mention single scroll
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Old 24 March 2019, 12:28 PM
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Might have good 3 bolt set here have you them off and a few pics just to make sure their the same.
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Old 24 March 2019, 01:01 PM
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ovadrive
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Originally Posted by 1509joe View Post
Might have good 3 bolt set here have you them off and a few pics just to make sure their the same.
Im going to take them off tomorrow and get back to you thanks.
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Old 24 March 2019, 04:52 PM
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stockcar
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At that level a decent set of GT2 spec 3bolt headers matched with the specific Harvey Smith 'trick' up-pipe is about as good as it gets.......if you were sub 400 then porting the std set-up is a better option generally
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Old 24 March 2019, 05:01 PM
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ovadrive
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Originally Posted by stockcar View Post
At that level a decent set of GT2 spec 3bolt headers matched with the specific Harvey Smith 'trick' up-pipe is about as good as it gets.......if you were sub 400 then porting the std set-up is a better option generally
Thanks for the reply. Are scoobyclinic headers as good as rcm ones ? Spoke to as performance about headers and Harvey trick up pipe and spoke to scoobyclinic just wanted to know which is the best route. Original graph before I bought it made 447 hp on rcm rollers but in my ownership taking it there it made less but was told after it's down to headers leaking not making full power.
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Old 24 March 2019, 07:55 PM
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Careful Stockcar is AS Performance.
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Old 24 March 2019, 08:21 PM
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Headers..americanism
the rcm manifold is identical to the gt spec 3 bolt one with added rcm tax
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Old 25 March 2019, 09:53 AM
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depends where you buy it from..............
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Old 25 March 2019, 02:23 PM
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Originally Posted by stockcar View Post
depends where you buy it from..............
Do you have many complaints about them cracking alyn?
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