I own several BMWs and have installed the Die Hard AMG cell type in all of them over the last few years. The batteries have had great performance over the winters and summers. The fit is spot on and if there is any issues the warranty covers replacement based on age. On the garage queens I have them on trickle chargers which will extend their lives well over 50% more as it eliminates the drain down and hard deep recharge cycling that kills more batteries than anything else. I would recommend them without any hesitation to one and all.
This battery was a perfect fit for my Dodge Challenger. The engine jumps to life now in a split second. A definite upgrade over stock. This battery also included included everything I needed to hook it up to the existing venting system. Great design and fit. A very well made battery.
Getting the physical battery was a challenge, no direction on where to go, rude people telling me I can't go through there, actual salesperson was fine. Still no "shop your way" points. Not sure what they would do anyway, maybe buy some worthless Sears holdings stock.
Looking at Servearl Car Puiblication there is always "Such and Such" Brand... My dad was 110% Sears.. I have ALL Kenmore Appliances, and Craftsman tools... and for my Car Battery.. I always trust and like DieHard. I think its dollar per performance the best.