Looking for more power from your Axys. We’ve got it. Our billet head gains 10hp at 7600rpm and 9hp at 8150rpm. Just completed several dyno runs with a 2016 Axys with Slp Pipe and can. Dyno test was performed with 5-8000′ domes and Chevron 94 octane fuel. Above 5000′ these domes will run safely with 91 octane but 94 is recommended.