Hey Guys

I am looking for a pipe to compliment my RS4 3 .18 SS
I am going to purchase a new engine and I want to buy a new pipe too. I know there were some recent threads re: pipes but they all seem to regress to some completely different subject.
Anyway, I have an HPI RS4 3 SS that I plan to put an OS .18cvrx into (based on Saboteur's advice). But figured I should get a better pipe too.
The car isn't a racer but has been upgraded with various suspension upgrades but now I want/need more horsepower.
What would your advice be for a pipe for this particular setup. I am looking for something mid-priced and I have seen pipes on ebay and around for about $50 (I am not sure if that is a realistic price or not).
I would like a pipe that will give me all around better performance but if I had to pick where I want my power it would be low end or 1st gear power I rarely get up to top speed because of space problems where we drive.
So questions:
1) what manufacturers are reliable and produce a quality tuned pipe?
2) What do you think about rear exhaust setups for bashing? IE the TSAIS line?
http://www.tsais.com/
3) Any thoughts on JPL? IE
http://cgi.ebay.com/JPL-Tuned-Pipe-S...QQcmdZViewItem
4) I want a pipe I can run with my current engine and then bolt it onto my new OS.
Thanks for your help.