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No difference whatsoever
Reviewed By Shelby G (GRANBY, CO) Reviewed for a
GMC Yukon XL
—6/27/2016 5:20 PM
Bought it, put the 93 octane tune on....feels like less power than stock....but it is easy to use
Easy to install simple to use
Reviewed By James B (Ashville, AL) Reviewed for a
—6/27/2016 2:49 AM
Haven't seen a major power difference but has definitely improved fuel economy. Only problem I've had with it is it has froze up on me twice.
Reviewed By Miguel B (PEARLAND, TX) Reviewed for a
—6/26/2016 9:03 PM
Eliminates dumb afm