I've been looking to fit a turbo to my 4.5, but just found out it's not legal and insurance wont cover me. So I called 5 vehicle engineers and the turbo mod must be emission compliant. So to do it legally they say there are 2 options. Either buy a turbo kit that is emission compliant with a certificate, or if I fit my own turbo I have to have it emission tested (bout $2,500). Then get it engineered to pass roadworthy, rego and insurance. A costly task either way.
Just thought I would mention it if your considering having it legal or not.
Think I'll have to stick with some minor mods and a good dyno tune for now....
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