Standard STi Back Box Question
27 August 2008, 03:34 PM
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Standard STi Back Box Question
I am looking to modify the standard STi 5 backbox to make it flow a little better. Is this possible and has anyone tried it? How restrictive is it in standard form on a 280bhp Sti, surely it would be less restrictive on a Uk Turbo with PPP at 237bhp, am I right in thinking this?
I know it will probably make it a little louder but only marginally.
I know it will probably make it a little louder but only marginally.
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