[pint]

Do some searches here on Mad on your performance questions, both the air filters and exhaust have been covered thoroughly. A few on Mud have been looking into exhaust headers for a few years. Nothing available yet as fas as I know. There is a Turbo system, which Slee sells, but it's VERY pricey. AS far as the lift, many on here have done it themselves with great success. I am pretty handy, but had never installed a lift. I spoke to Christo at Slee's and got a quote for them to do it. It was worth my time and money to have it done by a professional, plus I had my truck back in like 4 hours! It would have taken me all weekend for sure. Time is money, but that's just me! Good luck. Seriously, use the search, and look at the FAQ section at the top of the 100 section...TONS of great info. You're in the right place!