new exhaust and extractors for vs 5 litre

[executer]

Currently running a custom crane cam, 2.5 inich exhaust,hsv cai,tuned memcal,triple core race radiator.

What is a good exhaust, mine is a stock 2.5 inch from holden i think. it measure 2.5 inch.

I want to get a new straight through exhaust and some pacemeker headers. What kind of power gains, if any, should i expect?

[moco]

youll get heaps dude. i have asimilar set up and am getting 186rwkw

[SMURFTEC.]

you should speak to Not_An_Abba_Fan - he's a champion in this field, he'll possibly even be able to sort you out!