Hypertech Max Energy on 5.3 Chevy

LBarr2002

LIFETIME
SUPPORTER
#1
I pulled the Hypertech tune out of the Duramax before it went. It should be part number 32500, which would also cover our 2005 Yukon XL with an Internet update. It made a noticeable difference on the Duramax just on stage 1. Are these tuners worth it on the 5.3 or should I just sell it already set up for the LB7?
 

LBarr2002

LIFETIME
SUPPORTER
#4
Hyper tech is a huge waste on a GM gasser.
That's what I was thinking. Best I could hope for is a little mpg increase but the Yukon has gotten avg 17.5 mpg over the past 16 months mix of grocery getting in town and to columbia once a week so can't complain.
 
#5
i used a Hypertec programmer on my 5.3 2001 Tahoe, and it made a noticeable difference. I used the program for regular gas, since I didn't want to spring for premium. I really enjoyed the difference it made.
 
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