Best bang-for-the-buck over lithium and is a top quality battery with excellent reviews all over social media
Installed it last week in my Challenger SRT8 and works great, but I especially like that it was 26lbs less than the standard battery it replaced and is the best bang-for-the-buck over lithium. Another real plus is that it actually weighed 19.2 lbs, and love it when a company understates their products. I can most definitely recommend and won't be disappointed.
Does not fit nearly as well as an Odyssey 925. It looks like a rebranded Deka at twice the cost. The 925 terminals look thought out whereas the 3121 look like an afterthought.