Regardless of whether you are an amateur or a professional mechanic with years of automobile repair and upgrade experience, giving your vehicle the high-performance engine boost that it needs to achieve optimal towing power, excellent bottom and mid-range power, and greater engine performance is not as difficult as you might think. In fact, with the simple addition of a tuned port injection engine (also known as TPI), you can provide your vehicle with enhanced drivability, throttle response, and fuel economy. However, drivers who utilize this type of engine do often experience greater engine wear and tear as the TPI intake begins to suffer past 4,500 RPM. Furthermore, if you have done basic vehicle maintenance and repair before, installing the TPI harness within your normal car setup does not take more than an afternoon of time, provided that you have the proper installation directions. With a quick trip to eBay, you can save the time it would take to drive your local mechanic shops looking for this type of engine, as eBay features a wide array of new and pre-owned parts and necessary components from several reliable sellers near you. With the simple addition of a TPI engine, you can easily improve the structure and performance of your vehicle.