Currently, my car has 142k on the clock. It runs pretty good, but the mileage is my main concern. I don't know how the car was handled before I got a hold of it, but I'm still nervous to actually get on the gas and go past 65.
What should I do, maintenance wise, to sort of be preventative...
I live where there is no emission testing, and I know someone who can pass my car regardless of the exhaust, but is there a way to run a straight pipe in place of the cats?
If so, how do I trick the car into thinking the cats are still there and the O2 sensor not freaking out and dumping gas...