Just a heads up for anyone Looking for a battery soon, this might be a great option. From what I can tell these are pretty new on the market.
For reasons that are not entirely clear to even myself (Yellow Top Still Killing it) I decided to do a dual battery setup and found these beauties. I needed the second battery to be AGM so I could mount it sideways.
$180 and a $10 Core Charge (They also have a smaller Size AGM for $160 comparable to a D35 yellow top, but for the extra $20 bucks I figured it was worth going for the biggie)
Kirkland Signature AGM Automotive Battery
Group Size: 24F AGM
Up to 2X the life of a conventional SLI Battery
NONSPILLABLE, allowing for installation in nearly any position of the vehicle
Reinforced base assures performance even with high vibration
Tolerates high heat
Available In-Warehouse ONLY
Warranty: 36-month Warranty with 100-month Pro Rate Included
Cold Cranking Amps – 710
Cranking Amps – 885
Reserve Capacity – 120
Amp Hours – 70