10 of 10 Items
  • 3" Down Pipe with a 46mm Wastegate 3" Down Pipe with a 46mm Wastegate 3" Down Pipe with a 46mm Wastegate 3" Down Pipe with a 46mm Wastegate 3" Down Pipe with a 46mm Wastegate

    3" Down Pipe with a 46mm Wastegate

    This is a GN1Performance "3 INCH 46mm EXTERNAL WASTEGATE DOWN PIPE" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This 3" Inch External Wastegate Down Pipe is constructed out of 304 stainless...

    $535.00
  • 3" DownPipe with Internal Wastegate 3" DownPipe with Internal Wastegate 3" DownPipe with Internal Wastegate 3" DownPipe with Internal Wastegate 3" DownPipe with Internal Wastegate

    3" DownPipe with Internal Wastegate

    This is a GN1Performance "3 INCH INTERNAL WASTEGATE DOWN PIPE " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This 3" Inch Internal Wastegate Downpipe is designed to work with...

    $489.00
  • 3.5" Down pipe with Flat Flange 3.5" Down pipe with Flat Flange 3.5" Down pipe with Flat Flange 3.5" Down pipe with Flat Flange 3.5" Down pipe with Flat Flange

    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...

    $375.00
  • 3.5" Down pipe with V-Band flange 3.5" Down pipe with V-Band flange 3.5" Down pipe with V-Band flange 3.5" Down pipe with V-Band flange 3.5" Down pipe with V-Band flange

    3.5" Down pipe 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 constructed out of 304 stainless steel. All tig...

    $375.00
  • 4 INCH V BAND AND CLAMP 4 INCH V BAND AND CLAMP 4 INCH V BAND AND CLAMP

    4 INCH V BAND AND CLAMP

    This is a "V-BAND AND CLAMP COMBO" kit comes with a stainless steel v band ring and a heavy duty t clamp. This is a great item for those who would like to build their own custom down pipes.

    $45.00
  • Boost Controller Boost Controller

    Boost Controller

    This is a Boost Controller which is good for up to 50psi. It comes complete with all the hardware, fittings, and mounting brackets necessary.

    $99.00
10 of 10 Items