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Is the PR-X tune as good as advertised?

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Old 05-12-2023 | 10:49 AM
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InfinitelyDead
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Is the PR-X tune as good as advertised?

I understand that questions about tuners are very common, but my question is pretty specific. I want to get the PR-X tune for my 2011 5.0L, but other than people saying its good, I can't find any details about it. On their site they advertise 55hp for it, but that seems awfully high for a n/a motor. Does anyone know if it really adds that kind of power? Also how does the E85 tune compare to the 93 tune? By the way, I'm new to this forum, so please don't beat me over the head if I'm doing something wrong.
 
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Old 05-12-2023 | 10:54 AM
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RLXXI
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Originally Posted by InfinitelyDead
I understand that questions about tuners are very common, but my question is pretty specific. I want to get the <acronym title="Page Ranking">PR</acronym>-X tune for my 2011 5.0L, but other than people saying its good, I can't find any details about it. On their site they advertise 55hp for it, but that seems awfully high for a n/a motor. Does anyone know if it really adds that kind of power? Also how does the E85 tune compare to the 93 tune? By the way, I'm new to this forum, so please don't beat me over the head if I'm doing something wrong.
I'm running the PRX tune as a daily driver with my 5.0 and it's all they claim it to be. No need to bother with the e85 tune, your truck is already oem adjusted for that. I change up between e85 and 93 often.
 
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Old 05-12-2023 | 11:03 AM
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Originally Posted by RLXXI
I'm running the PRX tune as a daily driver with my 5.0 and it's all they claim it to be. No need to bother with the e85 tune, your truck is already oem adjusted for that. I change up between e85 and 93 often.
So, do you mean I can run E85 with the 93 tune? Also, what would happen if I ran lower octane in the 93?
 
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Old 05-12-2023 | 11:22 AM
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RLXXI
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Originally Posted by InfinitelyDead
So, do you mean I can run E85 with the 93 tune? Also, what would happen if I ran lower octane in the 93?
Yes you can run the 93 PRX with e85. DO NOT run a high octane tune with lower octane fuel. You risk engine damage if you do. E85 is 100+ octane.

You can run a lower octane tune with higher octane fuel if you like.
 
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