from my limited experience, induction kits cost a small amount of response in exchange for a small amount of topend power. if you have the chance to do some testing i would try the standard airbox back on with a k&n pannel filter, a harvey up pipe and recirculate the bov. toyosport products are also not very good so i would have a look at maybe a 2.5" turboback system from a reputable manufacturer rather than the 3" offered by toyosports. 3" volume is imo overkill for the amount of air your moving, as far as response is concerned that is.