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Discussion Starter · #1 ·
I've been doing a lot of reading and it definitely seems like there are better pcm codes then others. My most recent flash is CYH5, does anyone know if this code is any good or not? If it's not then how do I go about getting flashed with a stronger one...dealership?
 

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does size maters

Was wandering if size is important caus my truck code is vxap1 and
is only 448 kb but my friend has a 07 f250 and his is 519kb.
 

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not sure

I am not sure but I think most of the programers can due after deir read your pcm come out with a five leters and numbers and the first 4 digits is your code
 
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