Check out the stuff from ESR. Complete bolt on kits from as low as $800!
Everyone I've talked to with an ESR pipe is really pleased with it.
Whatever you do, never, never, never have Trinity Racing touch your machine.

 

yes I do have the ESR pipe and I love the power it gives me. A friend of mine has an ESR 370 with the same pipe I do and it screems. I cant deny that ESR has good products and does good work.

 

I have a friend that has a CT330 kit, with an LRD pipe. He said it screams! Pulls wheelies in 6th gear(I find that a little hard to believe.. maybe I'm wrong)

 

One other thing to consider when choosing an engine builder: turn around time. Do your research and make sure the engine builder you choose can deliver the goods in a timely manner. I hear over and over again how many people have had to wait several months for something as simple as a ported cylinder, that's ridiculous! Do your homework now, and you can be riding again in a couple of weeks!

-doug