Other than being very very loud is open headers / Open cut-outs bad for my truck in any way?

because when its warm enogh i roll under my truck and take those 6 wing nuts and 2 covers off.

Also do i get better gas mileage open headers? hahaha

 

yep you do 15mpg better

I dont think its too bad, just dont let it idle much to risk getting the fumes in cab, and dont forget to put the cut out plates back on when ur done cause left open overnight, a cold start the next day could F up the valves good.

 

its not as bad as running open headers with shorties, that will definitely screw up your valves

 

No problems at all.

 

really i get 15 more MPG's oh people are gonna love me even more!! yeah i normaly cover them back up within a 1/2 hour of me being home. open headers is fun!! i < 3 nice days