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      03-04-2012, 03:11 PM   #38
First Lieutenant

Drives: 2012 E92 M3 ZCP 6MT
Join Date: Oct 2008
Location: San Francisco, CA

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2008 E92 M3  [4.00]
Originally Posted by Roman@ESS View Post
Cold start on the factory software is designed to get the stock cats up to operating temps quickly. You should always properly warm up the vehicle before you drive it hard.
That's really interesting. I wouldn't have thought the purpose is primarily for the cats. Am I correct to assume that warming the cats gets them to the most optimal temperature for reducing emissions, and as such, you shouldn't care unless you're on your way to hug a tree and recycle your organic juice bottle? Thanks, Roman!