Re: M A P 2003 Tahoe 5.3
Delco/Delphi is the way to go.
BTW, you can get a TMAP from a j-body and some of the older 3800 cars as well and it will swap direct. The MAP scale and functions are the same, but it has an additional temp input that can be used for IAT2 or in lieu of the temp sensor in the MAF.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING 
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