xrt pro: which s2l? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 3 Old 03-07-2012, 08:12 PM Thread Starter
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xrt pro: which s2l?

i want to switch from the s1m to the s2l but i not sure the difference in the low,moderate, and high tunes. can some one help know the difference so i can pick the best one for my application

thanks jeremy

08 250 XLT CCSB auto,4x4, 3" Rough country lift with, 35x12.5, XRT PRO tuner, DPF/CAT delete, A&B CAI

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post #2 of 3 Old 03-07-2012, 10:18 PM
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The l,m,h is the speed at which the tc locks up. I think it is 45,55,& 65mph.

'10 ccsb fx4, afe stg II, 5" flo-pro, Tuned by "KEM"
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post #3 of 3 Old 03-08-2012, 03:39 PM
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My xrt pro on s1m (default setting) locked tc in 5th, also locks in 4th, at 55 mph but now on s2L it locks at 45 mph in 5th.
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