This carburetor SPACER is a waste of money .My analysis of this product showed that it did not improve the performance of my car`s exhaust system at all. The only positive aspect was that it was easy to install. However, it did not live up to its promises of increased horsepower and torque leaving my automotive experience unimproved. The construction felt cheap and flimsy, leading to concerns about its durability. Overall, i would not recommend this product to anyone looking for true performance-enhancing car parts..