Hello! We are about to install Doug Thorley headers, a Y pipe, an O2 simulator, and a Volant air intake on this Toyota 2004 4th gen V8 4WD/AWD 4runner. But before we install these, we wanted to get a baseline dyno to see what sort of numbers the 4runner is putting up. We are going to do a dyno after installing all of the boltons as well. If the numbers do not satisfy us, we'll get the engine tuned!

Follow up header installation video:    • V8 4Runner Header Installation  4th ...