Hey I have a question about some of the horsepower gains I can expect with adding a set of JBA shorty headers, and high lift cam, and a superchips custom tune. I already have a MAC intake system and a Flowmaster catback exhaust system.

Any help would be greatly appreciated.

My Truck

 

Get a dyno baseline before installing anything else. That way you will know that your actual improvements are instead of relying on marketing literature.

Steve