So I know I need to replace the exhaust and the Dr D full system seems to be a solid choice. Any other recommendations for a mid D-pack vet racer. My priority would be durabilty. My cornering always leaves something to be desired so I am thinking low to mid range power is what I want to help clear some of the larger jumps that I struggle with now but being an old out of shape guy I don't want to feel like I am hanging on for my dear life... I see from searching past posts that the CDI from an '06 is a nice add on. How much difference would this make if I made this swap before changing the exhaust (a used CDI is a lot cheaper...). Even with the exhaust, how much will I notice changing the CDI?