Quote:
Originally Posted by oil pan 4
To go from 16 to 20 its going to involve axle gear change.
Remove all the emissions control garbage. Since I don't think WY has a smog problem.
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It's already 3.73, are there options available that are even lower? And yes, I can legally do anything I want with emissions / exhaust. Once I get into that, should I straight pipe it, or is the back pressure from the muffler at all important to maximum efficiency?
Also, responding to slowmover, thank you! However, I'm not sure how to check the engine hours. I have about 280k miles on the odometer.