2004 Chevy Suburban 2500 4X4 6.0 Liter
Reviewed By Timothy S (San Jose, CA) Reviewed for a 2011 Chevy Tahoe —6/13/2012 2:16 AM
Used Cortex Programmer with, K&N intake, and Magniflo muffler. Around town MPG improved 1-1.5 and Highway about the same. More power, shifts are smooth and engine sound is awesome. Programmer was easy to install and I am not a car buff. Once you program the computer you un plug it and are good to go.
Mark T, Columbia, MO
Reviewed By Mark T (COLUMBIA, MO) Reviewed for a 2013 Chevy Tahoe —11/21/2014 8:46 AM
This thing is fantastic. It saved me thousands, because I was ready to trade my Tahoe in it was so frustrating to drive. This thing completely changed the vehicle and now I love it. Feels like it's 1000 lbs lighter. Great throttle response, a lot of power if you need it, and better manners on the highway. I chose Performance program. Gas mileage unchanged overall, but more & predictable power. Heck of a deal. Puts a smile on my face when I drive now.