Which one is the best for a 98.5 cummins

Also what supporting mods do I need for a programmer

depends on how much power you are looking for...


best two are probably:

Fass titanium 95GPH (good up to 450hp)
Fass titanium 150GPH (good for over 500hp+)


I run a 150GPH fuel system identical to the Fass titanium 150 in my truck.

Just a smarty

mmmhmm...sure soon as you get a taste of power you will want more! lol but if you truely stick below 450hp than a fass 95 titanium will do the truck. gives air/fuel separation, pre-filter + fuel/water separation, and a post filter with far superior filtration over the stock filter.