What headers to use 05 sti
24 March 2019, 11:32 AM
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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.
24 March 2019, 01:01 PM
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24 March 2019, 04:52 PM
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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
24 March 2019, 05:01 PM
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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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