Bought my truck in Virginia Beach Virginia. And 07 Dodge ram 1500 thunder road with a hemi. Move to salt lake City Utah and lost bookoo horsepower how do I gain it back.?

 

Move back?

 

 

What when I bought my truck in Virginia and I put dual exhaust on and a cold air exchanger I was supposed to be running up to 400 horsepower on my truck. Now that I live in Utah I feel like I'm only running on a maybe 320-325. I just don't have that get up and kick *** on my truck anymore up here in Utah. I was told to check my O2 sensors that can make a big difference is that a true and accurate statement?

 

What altitude are you at now?

 

Butt dyno’s are not very accurate. How did you know you had 400 hp then and only 320-325 now?

 

4,254 ft. Above sea level.
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