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This is a GN1Performance "HUGE 4" COLD AIR INTAKE SYSTEM WITH MAF SENSOR" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The kit includes a custom fabricated huge 4 inch aluminum pipe, 4" K&N air filter, and the ALL the hoses and clamps to work with your MAF sensor. As shown in the pictures you must modify your thottle body intake pipe and cut it in the center and mount your MAF sensor there. Please specify what size MAF you are running when purchasing so we can supply you witht he correct hoses.
