27SF512 JWT Chip

These assemblies from Jason Waters Tuning utilize a Xenocron-type design with authentic GLS27SF512 chips which are many-times-programmable as SST27SF512 using the BURN2 and other programmers. PLEASE NOTE that these particular modules do NOT have A15 connected, so they are essentially 32k chips with addressing from 0000-7FFF. This is fine for most applications (except 64k like 94/95 GM TBI), but it can't be used with the 2TIMER and such.