Two of these, a Kicker ZX400.1, an R/T slot port box(Amazon, ad claims it's made for JL subs), a Rocford Fosgate dual amp kit, and less important here, a Kicker ZX350.4 and Memphis 6.75's and 6 X 9's, both M Class, in a 2002 Stratus R/T coupe(it's an Eclipse GT). This is the loudest 2 12" setup I have ever heard, and the Memphis M Class coax's are a great match. My car can be painfully loud, and definitely will put a tingle in your vajingle. This is a work in progress(aren't all of them?) and I will be adding a second battery and isolator, maybe more midbass later, but I don't need it, the JL's are effing brutal, and did get me a noise ticket 3 days ago. Port your rear deck and/or seats, it's worth the trouble, let the W3's breathe, and they'll make your vision blurry. For real.