As a result of using this transmission filter, I found that my car runs smoother and shifts better... The GKI TF1149 filter fits perfectly and is easy to install, which is a huge plus, even for first-timers like me. The filter traps dirt and debris and prevents them from damaging my car's transmission. However the only con I could think of is that it may be pricier than some other options on the market, but the quality and efficiency are worth the investment. Overall, I highly recommend this autSee full review