Well first hi! Fell free to ask everything u wanna to here at AF
To answer ur question it would be important what kind of VTi- especially which engine uve got( i.e. B18/B16).
But for a general improvement I would go with the standard I/H/E setup (Intake, header and exauhst). I would get an AEM Colda Air intake (trust me this KN Systme wont give more than 3hp+), maybe a DC header and a good exhaust system. Ull end up with about 7- 15hp more than stock. All other real things are really expensive compared to this 'small' addons.
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play da game for fun not fame
what for idiots... theyre discussing about a law were u have to switch on the lights the whole day but when u switch on the fog lights without fog u have to pay for this 'criminal act'...
ZOMTEC rulez!!!