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      07-04-2009, 10:00 PM   #23
Poppin Fresh
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You might have to take your car to the gynecologist. It could have gonorrhea! j/k

They're right bout it the chemical reactions though. The cats do filter out the chemical breakdown of the gasses coming out. I would hate to be behind you with my windows down sucking on that unfiltered toxic M3 fumes. But I'm sure it hella sounds good!
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      07-04-2009, 10:08 PM   #24
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BTW, prior to the cats the exhaust is about 900-degrees F while after the cats the temps reach around 1300 F. That's speaking generically. The M3 may be more or less.

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      07-04-2009, 10:39 PM   #25
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Dont think it has to do with heat i had some kind of residue noticeable on my black car. After a rain it looked like water spots only on the back said of the car bumper taillights and trunk all had it. I tried everything even claybar to clean it off nothing worked. But someone told me to use vinegar/water mixed 50:50 and wipe it off with a microfiber. Well I didn't have that on hand but I did have some Windex with Vinegar and i sprayed that on it and it wiped right off. Just like brand new again no more spots after that.
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