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Hypertec??
Has anyone ever used a hypertec handheld tuner? I have been useing one for a little while and I just don't like it. I am useing it on my 05 F150 running the 93 tune and when its cold it wants to detinate (SP) I run nothing but 93 in my truck and add octane boost to make it a little bit stronger but it still wants to detinate once in a while. I am probably going to order a sct tuner I juess? What do ya think.. Thanks Steven
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Bottled 89 Coupe 
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