Re: Will the similarity between the Gen 4 and 5 motors lead to the code being cracked
With the advent of Federally mandated Black Boxes I suspect there will be little demand for cracking the code.
Most people that want to modify their engines for additional performance also want to be able to change it back in case they want to get warrany work covered.
They pump the engine, but if something breakes, they still want to be covered.
Until warranty runs out, do not expect too many to take the chances of expensive, non warranty repairs.
Predict the best ways for additional performance will be with headers, heads, intakes and exhaust that are still pretty warranty friendy.