Local control also adds to this equation as individual district policy can create additional variance from district to district. (thoughtco.com)
While some bass boosting is definitely added to the equation here, it's not over the top — the drums sound full and round, but not ridiculously heavy. (pcmag.com)
Also adding to the equation is a new electric water pump and a new electric oil pump, which help improve overall fuel economy. (greencarcongress.com)