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 welds and ... ( Click for more details )
Item Code: 2703.5DPW/VBAND
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 constructed out of ... ( Click for more details )
Item Code: 27035DP46MMGATE
This is a GN1Performance "3 INCH FLAT FLANGE DOWN PIPE WITH NO WASTEGATE" 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 ( Click for more details )
Item Code: 27035DPWFLAT
Item Code: 27035DPWVBAND
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 steel and comes ... ( Click for more details )
Item Code: 2703DP46MMGATE
This is a GN1Performance "3 INCH 46mm EXTERNAL WASTEGATE DOWN PIPE WITH A TURBONETICS BOOST CONTROLER" 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 ... ( Click for more details )
Item Code: 2703DP46MMGTBST
Item Code: 2703DPWFLAT
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Item Code: 270Boostcontrol