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They are not hard to swap out. If you have a trailer just do them yourself. You won’t be able to drive on them without a tune. If i were you i would do the flex fuel sensor myself and save the money, it’s easy. 10 minute job. $775 for a tune is a great price specially if it includes a flex tune also.
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22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 1300/ dsx aux kit/ 103mm throttle body/ big gulp 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ cnc,milled ported heads/ brick mod/BMR toe and trailing arms/ 781hp 748 tq SAE @17.3lb on a loaded dyno.
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