This is a GN1Performance "STOCK LOCATION POLISHED STRETCHED INTERCOOLER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. It has 23 rows, this intercooler features a beautiful POLISHED finish and an adjustable air scoop. The beauty of this intercooler is that it helps avoid over heating issues, when compared to the front mount intercoolers, this is the perfect everyday driver setup. The intercooler mounts directly to your original up pipe and turbo just as the stock one does. The sizes of this unit are; 13.5" wide (just like the factory) 15.5" tall, and a 3" thick core with a 2.5" inlet and a 2.5" outlet. Also included in this kit are hoses, clamps, and a mounting bracket.