72mm Throttle Body Power 6 Plenum Only This is a NEW AND IMPROVE "GN1Performance ALUMINUM 72mm THROTTLE BODY UPPER PLENUM" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. With this throttle body plenum kit you will have a quicker throttle... MSRP: Was: Now: $349.00 Add to Cart
