Justin will probably be selling his Dr-X harness here shortly.
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i did a dyno no hp increase for ported stock one to the ls78 unit and it bolts right in no harness needed on my 6.2 esky.
I have a new ls7 here i tested if your intersted
Tuned or untuned? Supercharged or no supercharger? I think his setup is different than yours Tony.
Unless they changed the plug the harness on my 2011 is the same for both tbs