Both the 15" and 18" subs are currently available. We do have limited production on both drivers right now and are awaiting the balance of coils to get a stock of 100 of each built up. First 30 of the 18" will go fast... there will be no back order for them as well will have plenty of stock built up soon.
For ordering info please send an email to
IB@FiCarAudio.com
Thanks,
Scott