| to recieve the 28 pin chip for the upgrade. Send them your ECU without your stock chip (or request to have it returned with the socketed ECU, Either way) The short of it is that once the ECU has been socketed(which is the innitial expensive part) you can put any chip you want or need in it at that point including taking it back to stock with the factory chip. FWIW I don't think you need to upgrade the NA ECU unless you're going with bigger injectors and are considering NOS. Correct me if I'm wrong, but I don't think it's worth it as there are no substantial gains to be had on an NA outside of intake, exhaust, UD pulley and flywheel. All of which don't require an ECU upgrade. Cheers Mitch
Gotta....Have....More.....Boost!!!!!!
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