i currently have a 99 yukon. i probably wont do the orions until i get my next car, which will be a 2006 Denali. Im probably gonna try and go with two 15.2 Orion hccas and 2 hifonics 2000.1 amps. naturally i will have to upgrade the alternator and get extra batteries to maintain it all. Its somewhat of a long term build but it should push around 150 db with that setup. and im a huge fan of jl and think they make great products. but orions are a full out competition sub that SLAMS. and there basically half the price of W7s