I Just piked up the '05 GSX-R 1000. After I break it in I plan on putting a power commader, K&N, full exhaust, and tuning it on a dyno. I've been looking into the Akrapovic, Arata, and Yosh systems. Does anybody have experience with any of these or recommend a different system? I'm looking to gain the most hp and best performance this way. Any suggestions?