Had Carboinio, Dbilas, ITG Maxogen & Revo Ceramic
Carbonio looked nice, okay for stage 1.
Dbilas heavy pipe work and Airbox & not as big diameter piping as ITG/REVO and small filter element.
ITG performed great heat shield around filter isn't that attractive but I removed it anyway.
Haven't had chance to compare my ceramic Revo to ITG. Looks nicer though. Less pipe joints to leak.