well I'm not real familiar with what our cars look like on the underside, but I figured later on I could add a cat-less down pipe, so I would add the cut-out somwhere right after the downpipe and have a muffler shop do some custom work so I could retain the second cat and factory muffler. The reason for this is that right now I'm located in OK, but, I'm in the military so who knows which state I'll be in next year, so I want something that will make it somewhat able to pass emissions, and I dont want a nagging wife over running a straight pipe the whole way. I'm really looking at getting into the drag racing scene and this seems like a real easy mod that I haven't heard alot of before.