So Im doing a MAF conversion on my 86 GT, and I needed an ECU...So I decided to take out my SD computer and exchanged it at Kragen as a core, and pay 100 for the new computer. So I picked up the computer today, and was shocked to see that someone had written on the computer, over the REMAN's paint, E6sf-12a650...And I was very very disappointed, because this is a Speed density Number, and I ordered the computer for a 90 GT to make sure I'd get a MAF ECU. Well, I decided to be smart, and I took some Finger Nail Polish Remover to the factory sticker that had been painted over by the Remanufacturer, and Uncovered a nice suprise! A9L!!! Very Good find...Rebuilt, and only paid 100 for it, and got the best computer I could get! Just thought I'd share with everyone my suprise!