I am going to put some pipes on my 05 LE but I cannot decide if I want bolt-ons or if I want to drop the cheese and get a full system and PC. I had Yoshi RS-3 bolt-ons on my last Busa and I loved the way they sounded. I guess what I am asking is, how much of a difference does a full system make compared to bolt-ons. Most of my riding is done under 7k and I would be looking for more low end grunt if I was to go all out. How about you guys that have had both bolt-ons and full exhaust....can you help a fellow out here?