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GN1 Performance 3
GN1 Performance 3
GN1 Performance 3
GN1 Performance 3
  • SKU: 270-3DPWFLAT

GN1 Performance 3" Downpipe w- Flat Flange with No Wastegate, for Buick GN & T-Type

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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 no wastegate provision is constructed out of 304 stainless steel. All tig welds and is built to clear headers. Please keep in mind that when ordering any external wastegate down pipe a boost controller is need to allow it to function properly and avoid any damage.
  • Note- This pipe REQUIRES an aftermarket Boost Controller 
  • This item will not work on a lowered vehicle due to contact with the upper control arm.


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