I just got my hands on a 99 Si ECU. From what I hear these things can't be chipped is this true? Sorry if the question is retarded guys, but I've been out of the aftermarket seen for a while, kids and a house will do that. But, big thanks in advance everyone.

 

They are worth .02 unless you have a 99 ex and drop in a b16a2 from a 99 si. In that case I would convert it to obd1 and go with a chipped p28.

 

Thanx cuz.