I start by saying I'm a rookie at these cars.. So I need to smog my z32 and it doesn't have cats. I'm trying to find the least expensive solution for getting my car to pass smog. I have looked at the magna flow hi-flow cats, but what I need to know is what parts are actually needed as "essential" parts of the exhaust system. **i have had the car 2 years and the guy who sold it to me must have gotten it passed illegally in the l.a. area. I am not against doing that myself, but I don't have anyone that would do that. **
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