I played dumb with the no cat fine i knew it didnt have a cat when my machanic told me after doin the clutch but i just acted dumb and asked whats a cat but if i admitted then i would have been fined the whole amount as it stood i recieve a $750 for first offence not know, if i was caught again they said i would recieve a $5000 fine. i mean it was my fault for not fitting one in the first place.. But for that .5 of a kw you receive with no cat, your better off fitting a high flow cat, even trust make them now with flow very high amounts for $450 which is cheaper then the fine add. yeh i had ot go to emmission, but i found once i removed BOV Air Pod and a cat plus removing the hot dog in the exhust and adding a muffler my car fell to a nice 83 Db max, and the emmission results pass first time if i can find my emission graph result i ll post.. When i went still with my hks rear canon they toldme i was dreaming if i thought i was gonna pass then they got the shock of there life..but Sure Flo in ingulburn did a good job on my ehuast as well as some guidence from my machanic on getting emmission levels down (i be happy to tell but in om dont want epa to find the secrets ) Thou i was crying when my baby sky come out quieter then my old mans Vx clubbie lol but oh wellz...