I can't really speak to that from experience since I don't have the choice of having one or not, but I've never heard of anybody having issues because they removed the Cat, and I know a lot of people who've done it. Some say there are benefits, like lower EGT's and better mileage. I believe the...
At the power level you're going to be operating at Duncan, there's no reason for a CAI. The stock Donaldson filter flows plenty of air and holds a ton of dirt (well, 3 pounds or so :D) before it needs to be replaced. Far better filtration than the aftermarket stuff too.Of course, if you just...
Wow, that's low mileage for an '01.It's impossible to say exactly how long it will last, but I think it's safe to say that as long as you keep it properly serviced and maintain the stock power level on the motor your trans will last a long time.