Now offering adapter boards for DIY tuning! Note: discount and custom printing available when purchased in quantity (please email firstname.lastname@example.org). Our adapter allows a chip to plug into an OBD1 memcal GM ECM without modifying the factory ECM or PROM. Adapter board includes one reflashable SST 27SF512 chip. DOES NOT INCLUDE TUNING. If you are looking for a full tune, visit here – Tuning & Software.
This adapter works with 1986-1993 TPI & LT1, and also 94-95 TBI trucks.