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depends how fast your goin to do everything... i did my lt's and all bolt ons went to a dyno day and the af was right on. so i didnt tune it knowin i would be gettin heads and cam eventuly now after i install them this week i am goin to get a tune. but then agian ttp just started the $250 bolt on tune which is a very good deal.... i didnt feel like payin $525 to just tune for my exhaust back when i got them...
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Sold.
1999 F350 7.3 Powerstroke
Formula 223ls, 454 mag 
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