Nope, with my two 12" subwoofers wired @ 2ohm on a 1000w amp they draw so much power that all the lights dim and the voltage meter on the dash reads 11.3v at full blast. Battery is a nice big AcDelco from 2013.
Need a bigger alt and maybe a second battery, especially for when I wire the subs to 0.5ohm.
Sounds you need a cap and a deep cycle battery.
Not sure if your pulling enough for a 24 volt system. That's a lot of power but I ran 3000 watts at 2 ohms for a couple of years and a cap sufficed well.
Then again I never could stand the volume at ear bleed level. But I do love my bass
Will it fit? Find a autozone or someplace that has them both and check the housings to see, I just wonder if there would any safety failsafes to prevent over charging ( like relays and such) but I would think it would only draw what it needs, I would read up on 24 volt systems to see what challenges they had and if any would apply to you. If you go that route.
In fact I would use 2 or more caps to level that kind of power.
Especially at 0.5 ohms
I doubt you will need the limo alternator.
IF a capacitor can solve your problems, it seems like a much more simpler solution than changing the alternator. Battery won't do anything for you because your car pulls power from the alternator when it's running. Unless you want to use your stereo a lot while the engine is off.
Hi I know this is an old thread but I have some things to contribute. While I definitely suggest a power capacitor to keep your voltage from dipping and your car maybe losing power when you need your traction and ABS to work most, I actually have done this upgrade.
*The limo 215 amp alternator is an exact fit to the base sedan.*
I have a 2006 (so a 2007 and up would also work) Non-Performance DTS Luxury II and both my alternator and battery went bad and needed to be replaced-- seemingly at once but I'm sure it was a case of one going bad and causing the other to fail. The battery was only 2 years old. Anyway I bought the limo version and while it was slightly larger in appearance (with heftier cooling fins and a little more copper inside), the bolt pattern was exact. It was a long, 10 hour job for the mechanics that hadn't worked on it before to take the bumper off, the radiator, oil level sensor, etc. so it was worth it to try to see if I could upgrade it since I'm going to be putting in a nice stereo with 2 15" Kicker square L7s. But definitely try just using at least a 2 farad power capacitor (with a circuit breaker) for your 1000W of power before getting into this job. Luckily, the shop's computer quoted the job at only 2 hours and that's what they billed me, instead of the 10 hours. =) I bought the limo alternator for about $70 plus core, and rockauto accepted the bad non-limo alternator as the core I returned. Gotta love it! I previously had my Grand Am's alternator upgraded from 150A to 210A because the headlights dimmed on bass hits but the alternator just made the headlights brighter yet still dimmed, until I bought a power cap.