You may have seen this one before, but the technology is simple and solid. The Top Dog V is a remote oil bypass system that can extend your vehicle's engine life by removing just about everything that's bad in the oil. The kit comes with an adapter (you still keep your stock oil filter), oil lines, and an additional 2-micron oil filter. The install takes about 10 minutes. Depending on what application you need (SUV, crossover, heavy-duty pickup truck), pricing ranges from $190 to $240.