This is a "MAF TRANSLATOR BOX AND A LS1 MASS AIR FLOW SENSOR" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This kit helps you get rid of your stock Mass air flow sensor and increase your air flow while being able to adjust it at the same time. The translator allows the factory computer to work with the new 3.5" sensor along with giving you some more tuning capabilities such as Air fuel ratios.
