Wanting to make it look like a cat so i can drive it to the track and on the off chance I get pulled over on the way it wont look so dodgey, so in theory less likely to get a yellow. A 2.5 will do for now as i wont have a full 3in system for a few months and really want to try it.

I dont need to do it, I want too. I dont need a quickish car for a daily but I have one