I had a test pipe made for my hatch and i didnt' like it at all, unless you have them make it like PERFECT FIT, which is very hard it'll have a big exhaust leak and you'll LOSE power, i got a high flow cat for $30 more than the test pipe but it was worth every cent, more power is going through.. so go with nice exhaust piping and high-flow cat, it'll be worth the money and time you put into putting it on.