HOW TO ADD UP TO 40 TUNING PARTS?       Let's get started, shall we?   1st - Rename your .DFF files   Let's say we're trying to add a complete bodykit that was supposed to be equipped on Elegy.   You should have   exh_a_lfbmp_a_lrbmp_a_lspl_a_l_bwg_r_a_lwg_l_a_l         To rename your downloaded .DFF files, I suggest you do this:     exh_a_zfbmp_a_zrbmp_a_zspl_a_z_bwg_r_a_zwg_l_a_z     Just replace the car ID letter to any other unused letter. It works for me, I already