stock integra alternator is 90amps i believe. i have a 165amp alternator. and i really want the less audio knowledgeable to understand these are not just some 15s. these subs are 700 dollars a piece; these are absolutely entirely too loud for an integra. im just stupid obsessed with bass. in all honesty, ill probably only be able to turn it up 1/4. what i have now(my 7512s) is much louder than most 15s. its just as loud as 2 rockford fosgate P2 15s. its louder than 2 memphis m3 15s, and the 15s i bought are literally 140in3 more displacement. its going to be stuipd loud. for those that didnt know, MTX is under ownership from 3 years ago and has rerouted the company and its image. so any of you who have experience with mtx stuff before 2007, havent experienced the new stuff they are doing.