I was hesitant to try out this replacement crankshaft, but I am so glad I did. As a result of my tests, I determined that this product truly improved my automotive engine's performance. The installation process was a breeze and the product is made with high quality materials. The only downside is that it's a bit pricey, but it's worth the investment for the boost in engine performance. Overall, I highly recommend this replacement crankshaft!