Any one interested in the x02 or hks catback, i need a list of ten to get a super good deal price, check this out for the hks knock out , they are cheap work and superb (u gotta be my350z member to read)
https://my350z.com/forum/intake-exhaust/251799-hks-knock-off-installed.html

Depends on quantity but it should be around AUD 650 and comes with one year warranty... if i can get ten i might be cheaper...cheers

For high flow catalytic converter should be AUD300