So I was reading diesel power and I've read up alittle on urea injection but i was wondering about the performance side of things? And why is cummins not using it to meet 2010 emissions? To me i dont know if its going to be a big deal to block off the urea part of the system. I'm debating on pulling the cab and doing hpfp mods... or just waiting to see what this new truck has to offer. Diesel power was saying that it is going to be rated at 370 horse and get 4-5 mile per gallon better than 6.4s i believe, 400hp at lower mpg's but there wasnt much info. Any thoughts on this would be great. I have had some issues with my truck and basicaly my warranty is washy at best...so do i wait and get a new truck and mod it out or do i go with the 6.4 for awhile?