I replaced the exhaust system on my 2004 SSS headers back, and the factory intake with a K&N. I have all the original parts, exhaust manifolds, mid pipes w/ cats, factory cat back exhaust and factory intake with a drop in K&N filter. All of these were taken off the truck at 20K.+/- If your interested in any of the parts, shoot me a PM or leave a note. Sorry no pictures of the stock cat back system.