Allen tuned my brother-n-law's ECSB 5.3 4x4 last week and he is very pleased
He says it runs better all around and he loves the downshift to 3rd when he went WOT at 95mph
I never Gtech'ed his before but next time he is over we will take it out and I'll post up.
Mike
'02 1500HD, 6.0L, magnacharger, 2000stall, custom magnaflow with electric cutout, E-fans, Nelson custom tune, Auburn LSD.
'79 L82 vette, Summit 355, Dart Pro1 heads, Comp 274 cam, Holley TBI, Built TH350 with 2500stall
'93 Blazer, full size 2dr 4x4, new project.....