freqrider wroteAnyone have a '91 SP2 eprom? I'm looking for comparison. Someone on another forum said he heard the SP4 eprom works well in the sp2, which I am highly skeptical. Thanks!
The SP2 engine (valves/camshafts), injectors and ECU (P7) are virtually identical to the SP3 and SP4 engine. I used the SP4 eprom in my SP3, worked really well.