Reviewed By Athanasios P (Buffalo, NY) Reviewed for a 2007 Buick LaCrosse —11/28/2013 2:50 AM
A bit of a pain to install, you have to remove the air-box to get to the ecu. Stage 1 on a stock vehicle, slightly better fuel economy.
Reviewed By Linda R (Titus, AL) Reviewed for a 2008 Chevy Trailblazer —10/19/2017 4:11 PM
Jet seems to be the only programmer that works for the 4.2 chevy inline 6. No problem with the installation and I noticed an instant increase in the low end power. this is where the 4.2 really sucks. Don't know why they did not use the 4.3.