Another traveler I see - Ashlar Lodge 93 St Augustine FL here

Where do you Travel from Brother?

I got mine done at dicks muffler on 80 in Longview. If you have a 2009 or 2010 with the 5.4 I would go with the 24in magna flow. All I did is have them cut off the factory muffler and weld the new one on, kept the factory pipe out the back sounds good not to loud. Another place that I would use is all-star brake and muffler on 80 in Longview. They sold me an 18in flo pro magnaflow knock off and it was way to loud, that's why I got the 24 magna flow. I would price both dicks and all-star with the 24in magnaflow and not a knock off make sure u look at it before they put it on. I guess it should be around 200-220 installed hope this helps.

The rear 4x4 blocks are 1.5". I was able to get my Nittos for ~$900 from Sears installed so you should be able to get the 275s for that price. I was going to go with the AT3s but their availability was sparse and the Nittos were my 2nd choice. Check out tirecrawler.com for pricing.