my apologies to the topic starter.

But I have a quick question for Weston - how much did the Type-R catback cost you and where did you find it.

as for the topic, i/h/e is not a bad descision or pointless to do on an LS motor, it's not going to throw out massively high numbers but it will outperform stock noticably if you do your homework. Just don't spend a whole lot of money on the setup, it's not going to be turbo obviously but I think your friend will be happy with the results.