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2.5 STI exhaust manifold and uppipe

Old 24 May 2016, 04:27 PM
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ZippyBobby
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Default 2.5 STI exhaust manifold and uppipe

Whats the most power you can run with the above. I am looking to go over 400 upto 420/430, do i need to change the exhaust manifold or not had mixed information so far.
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