3" Downpipe with a Flat Flange no Wastegate This is a GN1Performance "3 INCH FLAT FLANGE DOWN PIPE WITH " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This 3" Inch Down Pipe with a Flat Flange and... MSRP: Was: Now: $489.00 Choose Options
3.5" Downpipe 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... MSRP: Was: Now: $489.00 Choose Options
3.5" Downpipe with V-Band flange This is a GN1Performance "3.5 INCH V-BAND DOWN PIPE" 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 V-Band Flange Downpipe... MSRP: Was: Now: $489.00 Choose Options
Precision GEN 2 46mm Wastegate This is a "Precision PTE GEN 2 46mm Wastegate" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Precision Turbo and Engine Gen2 Wastegates Precision Turbo and... MSRP: Was: Now: $499.00 Add to Cart
Turbosmart GenV HyperGate45 14psi External Wastegate (Black) The GenV WG45 HyperGate45 External Wastegate is a Motorsport-proven, cost-effective 45mm external wastegate – The highest flowing gate of its kind. The GenV provides extensive user configuration,... MSRP: Was: Now: $519.00 Add to Cart
