Go to EFILive's website for a list of retailers (EFILive is not a sponsor here so not going to post links) , and yes even since your truck has been tuned with HPTuners it can be tuned with EFILive , that is as long as it was not a Custom OS (1.5 , 2 , 3 bar or RTT) .
Now what is a tune again?
Comp Cam 54-412-11 , Int:265, 212, .522 , Exh: 271, 218, .529 , LSA 114 , Longtube , CAI (Vararam) , TransGo HD2 shift kit , tuned by me with EFILive
dynospeed put it on the dyno and tuned it.Originally Posted by use2bfo
'05 GMC RCSB 4/6|5.3|LTH-ORY|CAI|4L60E|Transgo HD|Vette Servos|DynoTuned|Tru-Trac|4.11s|3500 PTC|
4 link, fuel cell and 200 plate kit in the making
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