Well I swapped out my HC1800 for two of the HC800's. I fit two of the batteries in the same location. Just had to make a couple brackets to make it nice and sturdy. They are alot shorter then the 1800 and now have two batteries instead of one.

 

I was looking into the 1800 myself, after I do my audio in case I need the extra juice.

 

Question for you, since you had the 1800, think the 2000 fits?

 

I have the 1800.. used in my 1st gen and now my second gen.. this batt make optimas look like Die Hards..

highly recomend this batt to everyone..

 

Marshall, do you think the 2000 would fit? How are the Kinetic's better? I haven't really looked into the specifics and done a detailed comparison.

 

way more Cold Cranking amps!!! and the service is way better...

I thnk the 2000 can fit as long as you make the power cables longer.. if you have a cold air intake it should fit.. if you have tthe stock air box it migh not.

 

Here is a pic of mine with the HC1800 in it. So you can see how tight it is and if you think you can fit it. I do not see why not at all. Just stick out towards the header more.