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So this is the official 7thGen Civic alternator update. I've been doing some research and this is what I've come up with.

Here it is in price order:

1 - Stock, 70 Amp alternator. - Free with purchase of your honda.. lol

2 - mralternator.com - 140 amp cold rating (so like 120), internally regulated, lifetime warranty - $245

3 - Dominick Iraggi - 170 amp hot rated, internally regulated (external is $125 extra), 1 year warranty - $379

4 - Ohio Generators - 160 amp hot rated, dont know bout regulation ask mohawkboom, 1 year warranty i think - $616

the 140 amp is more than anyone here would EVER need considering theres so many of you running stock with the 70 amp and pushing close to 2 kilowatts, and the fact that it has a lifetime warranty, and it fits in the oem casing and all that crap. i myself plan to break the 2 kW mark in the upcoming months, so thats why im researching. Installation can be tedious, and you may not be able to do it, so a shop may have to do it. pm me or email me if you need to get in touch with Dominick or need to find an ohio alternator.

 
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This is very helpful....thanks for the info

 
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they will powder coat the casing too for only liek an extra $25

 
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Are these alternators reliable? Where do you buy em from

 
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i odnt know about the iraggi or the ohio one, mohawkboom has the ohio one, ask him, i htink he knows about the iraggi ones too... it doesnt matter with the mralternator.com one, because they have a lifetime warranty.. do you even need one?

 
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Well i have a medicore system right now.. but that willchange soon my lights dim when my subs hit, and i wouldnt mind brighter lights

 
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speaking of which i got my alternator for mralternator.com yesterday... was 265 for 120amp, powder coated red

 
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Nice to know about the aftermarket altenators!!

 
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265 for a 120? they sent me an email saying 245 for a 140, so it would be 270 for a powder coated 140... hmmm... thats odd

 
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if i have 2amps for my system - a 800 watt and a 660 watt and they r connected straight to the car battery ,am i gonna need a stronger altanator? i had to disconnect my system last week cause it drained my car battery and the car wouldent start

give me some info on this im clueless

 
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like u said 140 amp cold rating and powder coating $25

 
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your battery drained because you were running the stereo with the car off most likely, but regardless, that still doesn't sound like nearly enough wattage to put a dent in your electrical system...

 
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when I asked months ago this was the response

"I can build you a 130amp direct replacement for 245.00, it would take a couple of weeks.
Thanks,
Tom"

 
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do we need alternators or will a capacitor work if were only running like 800 watt amp for 2 12 inch subs

-eric

 
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no...

 
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I'll put it like this, my friend has a mid '80s Corolla with i think a 60 amp alternator...he has atleast 1100 watts of class A/B power and has been running it like that since at least '94, with no need for a new Alternator...and he bumps it hard.

 
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sweet, big alternater maybe i can run my 3kilo watts of power now

 
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I'm saving these threads, for later use that is. Great info Lud. Should come in real handy this summer........