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      06-21-2012, 08:24 PM   #214
TreDirtyFive
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Drives: 335i Coupe
Join Date: Jun 2008
Location: Los Angeles, CA

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Quote:
Originally Posted by tamster00 View Post
I bought my car a few weeks ago and it came with the PPK, its not bad, love the burble and already did the golf tee mod, nice and loud
The PPK exhaust sound is a BMW's recalibration of wastegate positioning at certain parts of throttle and idle that give you the gurgling and pops. Almost all the 011 N55s released had this (valve flap open or closed) before BMW snipped all our balls with new firmware that softened tip-in throttle and removed all the gurgling so that it could sell more PK's and make it sound and seem more exclusive to those who purchase. It's basic business as most people who buy these cars, that aren't enthusiasts, won't even realize the difference and will most likely eek out better mileage with the gutted firmware. If you ask me, it's a complete disgrace.
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