OK, I use my truck to pull my enclosed trailer and race car. I have spent a lot to repair it in the last few months. I have replaced most of the suspension, including the stearing box. The EGR cooler was replaced with a heavier unit (befor I read about eliminating it here) The head gaskets were replaced with ARP Studs being installed. I have a 50HP tow tune installed. I was wondering, what else can go wrong at this point. Also, should I remove the tune and lastly, should I do something with the stock exhaust?

Thanks

 

I take it you have the 6.0? you have the basic stuff most guys do to their 6.0. the exhaust you can go 4 or 5" if you want. I went 4" not much point of going 5 unless you want to just say you have 5" exhaust.

 

Sorry, yes its a 6.0. I wouldhope for better fuelmilage and lower EGT's with the new exhaust. Function is important, not the 5 inch stuff