3.5" Down pipe with Flat Flange This is a GN1Performance "3.5 INCH INCH FLAT FLANGE DOWN PIPE" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 literb turbo V6. This is our all new 3.5" Inch Flat Flange Downpipe constructed out of 304 stainless steel... MSRP: Was: Now: $399.00 Choose Options
3.5" Down Pipe with a V-Band 46mm External Wastegate This is a GN1Performance "3.5 INCH EXTERNAL WASTEGATE DOWN PIPE WITH A 46mm WASTEGATE" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.This is our all new 3.5" Inch External wastegate downpipe... MSRP: Was: Now: $650.00 Choose Options
