got one yesterday off highlander and he says it is v.loud and my car is not in action and can't wait to install it. Anyway, anyone got any experience of collins? nice sound?

 

had a collins on my r5 gt turbo, great sound and very loud, it was a diaphram valve though, tried this on my scoob but had problems with it idling so bought a forge piston valve.is this one a piston, didn't know collins did one, could be wrong though
simon