I bought this to replace the anemic OEM 8 inch sub in my 300s. With the 800 watt monoblock piggybacked with the stock amp and their line out converter, this sub punches harder than Mike Tyson when he got released from jail. With minimal adjustments to the amp and the bass boost at 0 I get good, solid, clean bass. This is my 2nd time purchasing a dub from Skar for my 2nd 300s and I think I will keep coming back.