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Old May 1, 2011 | 08:31 PM
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New to the Corvettes (this is my second) I presently just purchased a used 2002 Zo6 Great car. Presently it will not pas Pa. emissions it has a cold air intake, and a Corsa Header full exhaust system, station say's since the dealer had the battery disconnected for storage that I needed to drive it for the computor to reset, I drove it in excess of about 200 miles still will not clear emissions. Is it possible that oxygen sensors are bad and they did not pick this up or possibly I have been told a dirty EGR Valve????? Second question I have been looking into possibly drilled and slotted rotors, or just slotted who makes the best and who shoulld I not consider. I would appreciate any info.

Thank you
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Old May 1, 2011 | 08:46 PM
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Hi, and welcome to the Forum! I can't help with the emissions part of your question, but the cross drilled and slotted rotors is a basket of worms. There are a ton of threads on this subject, I suggest you do a search, you will find a wealth of information, some of it conflicting and confusing at best. I was all ready to go with cross drilled and slotted and put the whole thing on hold after doing some research, good luck.
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Old May 1, 2011 | 08:58 PM
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Thank You, I had my concerns and hearing your reply is pretty much backing up my suspicions.

Bob
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Old May 1, 2011 | 09:49 PM
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If you are planning to do any track time, you might want to stay away from the drilled rotors. If you just drive the car normally on the street, drilled and slotted rotors will be OK - the certainly add to the looks department.

I ran a set of Baer Eradispeeds on my '00 (drilled and slotted) and was very pleased with them.
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Old May 1, 2011 | 09:58 PM
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most people i talk to say just do slotted. the drilled makes them more prone to cracking under heavy use (like track days)

either way (drilled, slotted, or both) will wear your pads down a little faster
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Old May 1, 2011 | 09:58 PM
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As I recall, you have to have a certain number of ignition cycles after a dead battery for the OBD II to read ready. If it won't pass because it reads not ready, you have to drive it a few times for it to cycle through.

For rotors, I'm very happy with my Baer Eradispeeds +2:

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Old May 2, 2011 | 10:13 PM
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Originally Posted by zebra86
most people i talk to say just do slotted. the drilled makes them more prone to cracking under heavy use (like track days)

either way (drilled, slotted, or both) will wear your pads down a little faster
Thank you I appreciate your input.

Bob
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Old May 2, 2011 | 10:23 PM
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Originally Posted by DsC5
As I recall, you have to have a certain number of ignition cycles after a dead battery for the OBD II to read ready. If it won't pass because it reads not ready, you have to drive it a few times for it to cycle through.

For rotors, I'm very happy with my Baer Eradispeeds +2:

I was told that by the dealer, but I'm sure patients on my part is lacking. I put on about 200 miles but had very few on offs. I really love the car's performance I never expected, but it worries me running around with out a inspection sticker will get myself in trouble. The car passed but until it passes emissions, no sticker. Thank you for your help.
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