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      08-23-2013, 01:55 AM   #355
BMW_Belgier
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Drives: E92 335xi n55
Join Date: May 2012
Location: Switzerland

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Quote:
Originally Posted by daftstar
Quote:
Originally Posted by TreDirtyFive View Post
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.
Hmm... I've got a 2011 335i w/sport package if that matters any
Does this mean I've already got the pre-ball-snipped sound? And if so, does that mean if I were to get the PPK1 or 2, that my exhaust wouldn't sound any 'throatier' after the upgrade? Or better yet, could one of you advise me on how to check for this?
If you had a software update on your car, the gurgling isn't there any more...
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BEFORE: 130i N52 (2006-2011)
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