08 Jeep JKU and TBS...
I have researched and read various reviews on a TBS,in my opinion if used by itself you may not notice a difference but I also have the Gibson Dual Extreme Metal Mulisha Exhaust and the K&N 57 Series CAI system which ALL three compliment each other VERY well. I've been driving my jeep for a year before installing the Airaid Poweraid TBS, not only do I love the slight whistle but I can tell a difference on the low end 1st thru 2nd gear which helps getting into traffic. I am extremely satisfied.
It Sure made a difference on my jeep
It came with readable instructions so it turned out to be easy installation. I waited to install the cold air intake from poweraid and the spacer together. I'm glad I did because it surer de a difference on the throttle response and torque power. It took me about an hour to install everything.