Thanks ozviking. Do you people think it's worth it to get the TRD supercharger for the 1zzfe? It estimates 7.5psi of boost? At the moment my car can keep up with B16a. But i am pretty sure if i get headers i can take it on easily. I can also keep up with B18a. However a sportivo would probably eat me alive 1st-2nd gears. I am just wondering if this supercharger would be of any benefit? Cause TRD estimates 7.4 0-60mph. but i usually drag till 120kpm plus. Seconldy the accerleration times were estimated for a Toyota Matrix, which is 200kg heavier? Would power to weight ratio play any significant factors? On my car now i have replace the steel wheels with Sportivo Alloys, thus lowering weight, and have replace cat and exhaust. Maybe another 4kgs? I reckon my car kerb weight is just over 1000kgs.