The Hookers are what I have. My only problem is that since it's uses a two piece driver header, it leaks slightly on acceleration so I think the best way to solve that problem is when you slide the front two tubes into the collector, put some high temp RTV on to seal it for good. In fact, my mileage both city and highway improved w/ these. Just remember, if you are going to install them yourself, give yourself plenty of time and either take the k-member off or the engine out of the car to install them.