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since the sedan is longer than the zx3, considering that, the exhaust system is longer too. so that means there is a performance difference for exh. gases backpressure to leave the engine, b/w the length of the cars. what do you think?
 

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i dont know, I guess it could afect it a little bit. I have a ZTS so if you find some thing out on this then let me know
 
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