Jonathon just enter, it's always a good benchmark and to see whether your mods to date are actually adding the power. See if say the Cai is giving you bout 7-10kw atw, and exhaust another 7-9kw atw etc. If it's not then you'll get an idea whether your car has something wrong with it or if it's spot on in power just like the rest of us :D P.S. You like spending money hahaha and it's only $45 Kenji