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My girlfriend is looking to buy a used Zo6 I have found a few good deals for her but I wanted to ask what is the difference between a 2001 and a 2002 or 2003 Zo6 besides the 405 hp.
Re: real difference from 2001 to a 2002 Zo6 (angman5)
No screen in the MAF, different lid for the airintake, different cam profile, different valves and valvesprings, different rings on the piston to prevent burning oil, different shocks, different producer of the rims, and the 02s and up come with the heads up display. There might be a few little minor things I missed.
Re: real difference from 2001 to a 2002 Zo6 (angman5)
I wouldn't be so fast to rule out a 2001 if I were you. The so called benefits of the 2002, if desired, can be achieved without a lot of expense. And, if you are into modding anyway, you will most likely be trashing the '02 parts. Not all '01s have an oil burning problem. I would focus more on the car itself and the deal provided and let that reality steer you one way or another. The paltry hp difference isn't worth much as 20 hp is easily made up.