3" Inch GN1 Dual Stainless Steel Cat Back Exhaust System This is a GN1Performance 3" Cat Back Dual Exhaust System for a 1986 or 1987 Buick Grand National, T Type, or Turbo T& 3.8 liter turbo V6. This 3 inch exhaust kit comes complete with custom mufflers, mild steel U-Bolt clamps, and hangers which is... MSRP: Was: Now: $849.00 Choose Options
