Hey guys Im RJ from just outside of Knoxville, TN. Just picked up my first diesel, a 2007 F250 6.0. 182,000 mile daily driver. Now has 189,000. When I purchased it, it had an MBRP 4" turbo back exhaust with no cat or muffler which I love. I have since added an SCT X3 with a Looney Fuel tune from...