Cold Air Intake?......Any benifit?

 

No on the CAI, not enough to notice, your best bet is gears!

Don't do the 17" rims, not worth it. The only reason it really changes your towing capacity from the factory is because the 17" rims come with 31" tires and the 20" rims come with 33" tires. If you wanted that benefit get some lower profile tires.

A handheld tuner will give you a decent gain in power and torque for towing.

 

NOW THAT MAKES ALOT OF SENCE!!!!!!

But...Low Profile means shorter Sidewall, does that lose me Payload?

 

It's the overall diameter, not the wheel diameter. 17s will give you a meatier tire if it's the same diameter as the tire on the 20s. A tranny cooler is a must. A larger radiator can't hurt, either. By the time you load up that 6,500# trailer, you'll be at the limit of capacity for that truck.

 

I ment Loaded at 6300....The Trailer is about 5400 Lbs Dry...