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2021 GMC AT4 CCSB
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68 Posts
If you've had a throttle controller for awhile try putting in back into bypass mode....you'll hate it and realize just how much it changes the response.
 

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5,973 Posts
I installed the PC right before my last towing trip, and oh heck, it made a huge difference for the small cost. I only gave $100 for it.
 
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