The amp steps are so great, best mod to the truck no question. The sub is good. I got the kit with an amp for the other 6 speakers too. The value to me was a clean, simple install without mortgaging the house. I priced out my dream JL Audio system and it’s somewhere near $6k - not realistic for me. This is a fraction of that, and for the price I’m happy. Not that $999 on ShopChevyParts is cheap in times like this, but I think it all works well. I listen to everything, old rock, classic rock, old rap, country, you name it and it pretty much does the job. The 2.75” upgrade just about needed the whole dash taken out, but an afternoon and it was done. I also have some door speakers ready to go, but that’s another afternoon. Half the pleasure is taking my time and installing everything right, not tearing up the rig. Sent from my iPhone using Tapatalk