The ZF1/ZF2 2010-1014 CR-Z KSWAP Custom ASP Header is designed in 304 stainless steel, made to not rust.

Designed with stepped equal length runners, and uses a true 4 into 1 merge collector to insures optimum air flow efficiency and full hp:tq potential. The megaphone/reverse cone is highly beneficial in delivering maximum peak horsepower and power bandwidth. Made in USA.

Made to be used with a K-swapped CR-Z. Was used with a k24 block that made 250 whp naturally aspirated. Nothing wrong with it just decided to go the turbo route and had to switch headers.