Flowtech
I changed the plugs and installed the ngk tr55's. The car runs a lot smoother and sounds great. For right now, I still have the specially routed loudmouth on and untill it gets on my nerves, it'll be there.
My car turned 99000 when I tested it out on last night and this install was saying "happy birthday" to it.
I highly recommend these headers if you are on a budget or not. They look great as well as sound great.

