It should be, a Yellow Top only has 870 CCA, where that one has 950. Keep in mind that Kinetiks have flat sides, so you'll have to find a way to hold it down. According to Kinetiks website adding the second battery won't put additional strain on the alt, the following is from their site.
I heard that adding more batteries to my car will lower the voltage and is harder on my alternator, is this true?
Adding multiple Kinetik Power Cells to a vehicle will not add extra load on your alternator or lower you voltage in your car like adding ‘wet cell’ batteries will. Due to the low ESR and high voltage of Kinetik Power Cells, your voltage will actually increase. Kinetik Power Cells also charge more efficiently and quickly than a standard ‘wet cell’ battery reducing the stress on your alternator.