895XJ Posted April 29, 2017 Posted April 29, 2017 I've got an 89 ECU, came out of a 4.0 auto. The ECU offers the 89-90 programming which is the hottest years and yields most power. Free shipping to all 50 states. Very nice condition and corrosion free pins Sent from my XT1635-02 using Tapatalk
NC Tom Posted April 30, 2017 Posted April 30, 2017 Can you just plug this in an 88 without modification? What happens?
Minuit Posted April 30, 2017 Posted April 30, 2017 Can you just plug this in an 88 without modification? What happens? Yes. About 5 hp gain if I recall.
895XJ Posted May 4, 2017 Author Posted May 4, 2017 You can plug and play 87-90 without issue. Manual and auto.
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