Depends mostly on how fast you want to go
and how much you're willing to spend to get there.
Where you want the powerband might help too (bottom, mid or top).
We need more details!
Sorry fellas, I saw the thread last night at 3AM and PM'ed him immediately.
I figured sending a PM would get his attention much quicker than posting on here.
Paypal has been sent, I couldn't pass this one up!
Your topic states 'help me choose pipes'
maybe you should change it to read 'what are these pipes?'
to get more responses.
I've got no idea what pipes they are tho.