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About ImHowl

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    2018 GMC Sierra Denali
  1. I don't have one on my GMC, but I had a Volant on a Nissan Frontier 4.0 V6 that I used to have. It made the V6 scream. Really opens up the airway. I paired it with an intake manifold spacer and it really made the engine sound better, even with a stock exhaust system.
  2. I just bought a 2018 Denali and tried this to see what would happen. I pressed and held the power button and got the screen pictured. Only the outside temp and time was displayed on the screen. I turned the truck off, then after work turned it on and the same screen was on. I put the truck in reverse and the backup cam still works, but no radio sounds at all.

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