TRD cat back exhaust question

for people with the TRD cat back exhaust, how does it feel power wise, was there an increase in power? how does that increase if any compare to other cat back exhaust for the 2005-2010 tacoma? i read the exhaust is also suppose to help increase gas mileage, how's your experience on that? thanks.

 

Ummm I could feel a slight change in the butt dyno but I also had a CAI. Sounds good WOT. Gas is not bad prob avg around 300-320 a tank.

 

x2

 

^x3 Sounds slightly louder at idle & really begins to talk around 3k rpm's. I also combined mine w/ the CAI & can tell a difference when I get into the throttle. Haven't really checked gas mileage.