935 Motorsports sells the Y-pipes. Just be sure to tell Robert that you need it as soon as possible. He's a very busy man. He also sells a DIY 3" exhaust system for fairly cheap that has a Megan Racing muffler on the end. I have it on my 1J, and it sounds awesome. A good DP will be about $150 or so. The plugs you should put in are the copper NGK 6097's (BKR7E) at 0.028 gap. Change them every other oil change. Don't put in platinum's or Iridium's, they don't like our motors.