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      09-24-2012, 02:33 AM   #8
flinchy
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Drives: E82 135i
Join Date: Nov 2011
Location: QLD, Australia

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Quote:
Originally Posted by monkey_wrench View Post
Is that what it's for?

Interesting...
Yeah, a bit more back pressure on cold start keeps the gases in for a bit longer and warms the cats up faster (for emissions stuff)

yeah, golf tee mod makes it REALLY crackly and loud for me on cold start, it's awesome

apparently when warm there's meant to be no difference, it's pretty smooth when warm anyway
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