The crosswinds is what some call a Chinese knockoff of the Edelbrock Air-Gap. It looks good on the surface especially with the extra coolant taps (front and rear IIRC) and the dual-pattern bolt holes (LA and Magnum) but a lot of folks here complain about the build quality around the sealing surfaces. I need to put whatever I can into the local economy so I bought the Edelbrock Magnum Air-Gap and couldn't be happier thus far.