Been doing some research, and comparing a few alarms in the Viper line. Came across the Viper 791xv which is supposed to be identical to the Clifford Matrix 3.5 RSX. However, this alarm is a little pricey. Now, I found the Viper 591xv, and it seems to have the EXACT same features as the 791xv. The only difference in features is 6 tone siren according to the Viper website. Here's the link:

http://www.directed.com/gps/viper_fc.asp

Are there any other differences? Why is this alarm $100 more than the 791xv? I'd pick the 591xv anyway, to do away with that annoying 6 tone siren.

I would love to pick up a 591xv, but I can't find any places that sell it however. Anyone know any online websites that carry the full line of Viper alarms?

 

I don't know if you didn't notice, the 591xv is not an alarm it's a remote start.
I install DEI products the 791xv is an alarm with remote start.

 

crap nm. thanks for pointing that out