Originally Posted by TIRBRNR

I own have my own exhaust shop so i have had my exhaust just about any way you can think of.With no equalizer pipe truck runs like crap, ruff idle vibrates shudders when you get on it.With an H pipe its better than nothing it runs and drives good has good power.With an X pipe its the best,the most power and the best sound engine is real smooth.When the truck made 511/491 it had 2 1/2 super turbos,it has 2 1/2 flo-pros on it now i was suprised at how much i like them cruising around they have a really deep tone and you can hear the cam more at idle and not a lot of drone.