Conclusion: I just recently put this in my truck and wow this little sub has some kick. Put a small kicker amp on it and its just the right amount of bass for me. great blance with the other polk audio speakers in the truck. If you want a little bass in your ride you cant go wrong with this sub...
Conclusion: This is a great little sub i put it in a sealed box behind the seat of my truck and couldnt be happier with the punch that comes out of that 8" sub. If your looking for some bass trying to get that full balance of sound in your ride you cant go wrong with this 8" sub.
Summary: Installed this last year for my son in his 2001 GMC Yukon XL. Like others, it fits but with minor modification to mounting rim. I took the cardboard mounting rim off the old subwoofer and used it as a spacer for this one; used tape to seal out air leaks. Sounded OK but that was with factory amp.
Pros: Value for money spent, Crutchfield instructions, sound quality, build quality