Anybody seen any dynos on the shorty headers for our trucks? Waste of $?

 

If you compare cost vs. hp gained it is a waste.

 

For some reason, JBA hasn't/didn't dyno them, but they dyno'd their shorties for Chevy and Nissan. I'd say 15-20hp and torque. Not exactly worth it for the cost, and the install is a pain, but the sound is SOOoo nice, and the midrange-highway performance get up and go is quite nice.