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04-06-2016, 09:54 PM
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#1 |
 Drives: 14 1SS RS Black (rental) Join Date: Nov 2014
Location: Los Angeles, CA
Posts: 87
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4CYL mode exhaust valve - non NPP eqp. cars
I've been curious as to how non-npp 6th gens are whisper quiet until you accelerate hard.
i had no idea my non NPP 1lt rs a8 had such a good exhaust note until i let a friend get behind the wheel and told him to floor it so i could hear it for myself. i believe I read somewhere that theres an exhaust flap that opens while in 4cyl mode, does this flap also open under hard accel? |
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04-06-2016, 09:56 PM
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#2 |
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Retired from Car mfrs....
Drives: 2LT RS/HR-V Join Date: May 2013
Location: /Fort Lauderdale
Posts: 10,044
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No nothing opens for more sound, its just a good tuned exhaust.
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