Exhaust ideas for my VR commodore?

[VR ST3LTH]

well i want to get an exhaust for my V6 VR commodore live axel. i had the idea of buying a hi flow cat say about 200CPSI my self and giving it to an exhaust shop to put into my system that i want them to make that would be: 2 and a half inch pipe into a hi flow sports muffler then straight out to twin 3" dumper pipes. would this sound good? and what would the price be about? or i was thinkin the same idea with full exhaust so with extractors.. what would that cost? ( all prices preferably without cost of a cat cause i can get one for around $230)
Thanks a heap for your ideas.

[stocky]

high flow cat will be a waste of money

[VR ST3LTH]

whys that? how come?

[stocky]

a v6 doesnt need one without lots of modifications

[VR ST3LTH]

but it wouldnt hurt to get one, for future mods? im puttin twin throttle bodies and such on, new shaved heads and that too..

[stocky]

why spend money when you dont need to?

[VR ST3LTH]

saves spendin money later?.. what about the rest of the setup, would it be ok?

[7shane0]

dude about your exhaust issues buy a full system in my opinion lukey is prabably the way to go i dont really like the walker sound. up to u about getting a aftermarket cat, if u do go with an aftermarket one dont expect much gain if any at all. before u put a twin throttle manifold on i would get it put on on a dyno and get the computer remapped some good gains have been shown.