I bought and installed a PAI I found on 1aAuto.com for my 2007 LT 5.3. Installation was a breeze, parts are good quality and everything fit very nicely. All this for only $80. So far, after driving with it for a couple of weeks, I am averaging 1-2 mpg better than with the stock system. (I have also done the resonator delete with the SLP tips.) Next purchase will be a tuner.
I am so glad I didn't spend $160-$350 for a name brand system that is essentially the same thing.
I am so glad I didn't spend $160-$350 for a name brand system that is essentially the same thing.