I am thinking pf putting a tuner on my 03 6.0. Is this this the only modification I need? (air intake exhaust)? I will not be towing heavy.

 

u need guages. the rest is ur call...it will gain hp and efficiency, but i doubt u NEED it if ur not towing

 

I got the predator and had straight piped it to lower some egt's...
but then got a turbo back exhaust for a couple of reasons... Noise - better performance - cooling.... and like them both ---
check the dyno run in my gallery by clicking on my username and view gallery...

 

I do not have gauges yet. I run the 65HP Predator and I tow a boat about 2000-2500lbs. Not to worry. It says not to tow >8000lbs with 65HP.