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turbo 5.3 swap
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  1. Engine Tunes/Mods
    Do the 5.3's have intergrated tcms/pcm's?........... Questioning possible turbo 5.3 build...... Need to know if the tcm/pcm are regulated together or seperately.... On ls1tech.com.......the guys that use the truck 5.3's say it should make for an easier swap due to the 5.3 came in the...
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