getting first mail order tune?
#11
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I went from a 15.9 on a Saturday night with the 4.8L to a 12.56 the next Saturday night with the 6.0L.
I had to drive the truck home from Memphis(3 hrs) on the stock 4.8L tune. It might as well have been a 4.3L under the hood. After the tune, it was night and day. You do have a different converter in there, right?
I had to drive the truck home from Memphis(3 hrs) on the stock 4.8L tune. It might as well have been a 4.3L under the hood. After the tune, it was night and day. You do have a different converter in there, right?
#12
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by te way its not a junk 2002 6.0 it a new lq4 2007 .i dont have a big cam 218 /221 532 lift.so i dont think i need a converter.i am on a semi stock pcm from the 4.8 the tuner guy i went to {just got it running for me}waste of time and money ,i think it gonna be better with the flashed ang tunedpcm.
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