Quote:
Originally Posted by shadrach74
If you install headers, you will need to have your ECU flashed to ROW specs; if you don't, you're engine will throw a CEL for the catalyst (or lack thereof). Australian cars are delivered as ROW cars from the dealership, so they don't have that problem.
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Also... Colo has emissions laws that mirror Commiefornia's so it may not pass smog inspection with headers/ROW flash. No smog, no tags.