I have 6 used chips for TR's. (1) Thrasher anti-theft, version 9230K2560, 92 octane, stock injectors, TCC=normal, with instructions. (2-3) Two of theseATR Pit Bull, stock injectors, #HP137 R3. (4) Connelys Mini Mag-stock injectors. (5) ?? Marked "EFI", 92-30-K2, 2200stutr. (6) I believe ATR strip chip , # HP138TX-530D. $100 shipped to U.S. lower 48.