I have been a member for a while , with no posts just reading and looking at the gallerys when I had my 03 350 , 6.0 dually nothing special but a good truck. I just put up a pic gallery on the 18 with my new Ford 350 Harley its a great looking truck it has 7000 mi on it I bought it new in March. I don't want to mess with my warranity, so my question is would a new exhaust from the cat back be worth it performace wise. I haul a 22ft enclosed trailer. My truck has the 6.0 , 373 gears , crew cab ,[not dually] and 8 ft bed ,4x4 and all the Harley goodies