es we build here at Endyn. These headers have repeatedly out-performed every other header (custom or production) on the market in our dyno testing and in real-world racing applications. Our engines are all custom-built for customers' exacting applications, requiring specialized exhaust evacuation solutions to achieve maximum efficiency.Aside from producing a header with the highest build quality in the industry, Hytech Exhaust also works hand-in-hand with us to insure that the design meets our performance goals.These headers have repeatedly netted 20-40+ HP more than the best production headers on the market....and that's remarkable.
