Bolt on exhaust, egr blocker, finger stick and more I have an 07 classic 2wd with an Allison cc sb. This truck is my daily diver and I don't race it or pull the space shuttle around. I just want beter milage. I have an AFE scooped intake enroute and that is all I have for upgrades, now I am pricing exhaust and a tuner/ progammer that won't kill my warranty. Any suggestions? I am an active army Flight Medic. |