ok so heres the low down... i recently bought a 300 amp ho alternator from iraggi and took it to a local shop to get it tested, just to see if they could... they told me it was a 135 amp alternator :s i was like ok w/e there machine cant test this alternator so i just ignored that... so then he goes on to tell me that this alternator housing is off of a lexus (i bought it for a 95 civic) and then proceded to get a lexus alternator off of the shelf at his shop... and compared them both. now i have faith in dom not to rip me off thats not the problem but the looked IDENTICAL (from the outside) the coils looked the same housing mine had very minor machining so that one bolt could wrk with my bracket. now with all thats said how does a ho alternator work cuz i thought the coils made the current and if they look the same how can mine produce 300 amps??