does the peakboost manifold only use one style exhaust flange?
 

i want to know how u can tell a manifold is peakboost...i know how they look like but my question is i see different exhaust flanges(shape) on different pictures...so thats why i ask if they use more then one different style flange on there manifolds...dont want to end up buying a fake one...hopefull u guys know what im asking