wrong person la bro , now try learning standalone , need to see how experts doing tuning. then can learn la. did u remember ur 400hp mazda b8 interplay game dgn lydia racing red putra BFE 34 at klia , ur use microtech , big turbo but kena tapau jgk dgn pak latib. that putra still used original 4G93 engine with safc only.??? hp only below 160 . we need still to learn because nobody perfect bro. sometime other person can tune but cannot build engine. i try to be engine builder , tuner , racer. that my way to improve myself in motorsport. wait for my car in same class bro. he3.