VXII SS exhaust

[sno]

hey all ive read a few posts already but ive got a few questions to ask..

Whats the best setup/size exhaust for my stock VXII SS?

What gains can I expect?

What other cheap mods should I look at in the future?

Any feedback welcome, thanks

[GMMAD]

twin 2.5 cat back and get the cats opened up
not much of a power gain on its own but
2 hole mod is a cheap mod
best bang for your buck is a tune