Quote:
Originally Posted by Absorber
I just had my HPFP and software update done. I wish I hadn't. The car has definitely lost some power. I used to be able to get a brief burnout launching in 1st with DTC turned off. Now it lags instead. I also used to be able to chirp the wheels sometimes going into 2nd. Not anymore. The car does feel more smooth when shifting and building power across the band; it's just not as violent and fun as it was. I'm disappointed.
Also, the pump primes very loudly now when the car "wakes up" after unlocking or opening a door after it has been sitting. It sounds like a Hoover vacuum for a few seconds.
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That's cuz it's doing what it should to prime the pump to keep it from failing.