Just did what you're thinking and I would say it improve the overall sound. (about 50%)This is with some cheap amps (sorry to have done this but money is tight) with component MB quarts in the front and 2 way in the rea, now the exciting part, my installer was able to sueeze 2 8" JL audio in the factory opennings without any cutting and it brought some serious bass.(not the bling bling type)I spent almost 1K for this now I'm thinking of changing the head unit with pop out DVD player. Oh well just a thought...enjoy...