wondering if anyone had broken anything or had any issues with the spartan or H&S on a 6.4???
Mind you, it doesn't have as much power as Spartan and the Mileage isn't as high because the DPF is still in place. But for what it does and what I've gotten out of it, yes, I'm very happy with how it performs. Power is very noticeable, definitely puts you back in your seat compared to stock. Mileage is better then stock and I've noticed no increase in the amount it regens, mine regens every 400-500 miles.to "smotrs" i see you dont have the spartan do you like what you have better??