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Just wondering, I can't seem to make out with a search since people rarely touch on whether it's a requirement or not with the aftermarket exhausts to have to get a Power Commander as well and pay for a Dyno. As if the cans aren't expensive enough.
Can anybody lend a helpful word on the downsides of changing the cans and leaving the ECU alone?
Can anybody lend a helpful word on the downsides of changing the cans and leaving the ECU alone?