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Version 1 STi Fujitsubo Exhaust bore
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Old 07 Jul 2009, 08:20 AM   #1 (permalink)
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Version 1 STi Fujitsubo Exhaust bore

Hi all,

Ordering a sports cat for my V1 STi but wondering if anyone knows off the top of their heads whether the original uprated Fujitsubo exhaust on these was 2.5in or 3in? If anyone has a nice layout diagram even better! I know I can get an adaptor but would rather just have it right.

An HKS panel filter should be arriving today as well (want to keep the original look under the bonnet), any idea what modest gains these two things will give me? (Everything else completely standard)

Do I need to bother with the uprated fuel pump at this stage? This is likely to be the only mods I make performance wise for a little while.

Thanks!
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