As a hesitant automotive buyer, I was pleasantly surprised with these laser iridium ignition parts. As a result of my tests, I determined that these are a reliable upgrade that will improve engine performance, last longer, and reduce emissions .The installation was a breeze and the improved spark allowed for smoother acceleration. My only minor con is the price but the added benefits make it worth the investment. Overall, highly recommend for anyone looking to upgrade their ignition system..See full review