Since installed I have noticed my GMC perform better and increase horse power. I only recommend the Airaid pipe for trucks with duel exhaust and chambered muffler and K & N air filter. The bad is where the pipe has a place to sit on the factory plastic grommet. The placement on the pipe does not even come close to fit correctly. I'm not all that pleased with the materiel used to make the connection into the intake/ throttle body.It's thin and not the write thing to use for this application
not what it sounds like
I bought this because it said it was a sealed air box with duct from up by grill. Not even close, where the stock box got air under right fender there a over sized oval hole in the new box that you can't tell if you even matched the two together any no seal there at all. Duck is a tray that fits on top the battery and has 2 side (an duct?) that supposed to match a hole in air box,well very half ass. I have a scanguage2 and air temp was cooler stoch then with this setup.