If any requirements do come into effect like that I will try to stay under the radar as long as possible. I'm really diggin the increased fuel economy and power. I feel like my rig is actually making less harmful emissions because I'm going through far less fuel per mile. Seems to me that that means I'm burning fuel more completely in the combustion chamber and not dumping excess to burn in the cat. I'm no scientist but I know I'll never put another cat or muffler on my rig. It's nowhere near as loud as my gasser suburb was with with strait pipes. I like the deep grumble better than the crackle of a gasser at high rpm. I talked my roommate into replacin the turbo on his dodge and letting me get his hx 35. Can't wait for even better fuel economy
Will
1996 GMC Suburban, 6.5 TD, 4L80E, 3.73 Full floating limited slip rear end, 285/75R16E Dayton Timberline ATII's.