Exhaust Downpipes & Headers

4 of 4 Items
  • Precision GEN 2 46mm Wastegate

    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 Engine Gen2 wastegates are high-quality, economical, and...

    $399.00
  • 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...

    $399.00
  • 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...

    $399.00
4 of 4 Items