Honestly that one looks like a reg alternator that was tweeked to put out that high amperage, me personally for the real high output amp alternators your gonna spend a few $$$.......i had the glide series head unit, alpine v12 amp running a pair of alpine type-r components(woofer/tweeters),mono v12 amp, 12" type-r sub and capacitor on my 98 teg and never had a problem.....for your set up i don't think you'd need to change your alternator but you might want to invest in a optimum battery, it'll be able to dish out the power you and the alternator should be able to charge....plus get a cap for your system i had a rock.fosg digital cap, your sub will take the power from your cap when it needs it v.s. taking it from your battery/alternator