This is an all new GN1Performance 3.5" Exhaust Cut Out for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This item is constructed out of 304 Stainless Steel. ( Click for more details )
Item Code: 27035Cutout
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
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: 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
Item Code: 2703DPWFLAT
This is a GN1Performance 3" Exhaust Cut Out for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This item is constructed out of 304 Stainless Steel. ( Click for more details )
Item Code: 2703InchCutout
This is a GN1Performance "3" Cat Back Dual Exhaust System" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This kit comes complete with custom mufflers, clamps, and hangers which is everything you need to bolt ... ( Click for more details )
Item Code: 2703InchExhaust
This is a GN1Performance 3" Exhaust Test Pipe for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This item is constructed out of 304 Stainless Steel. ( Click for more details )
Item Code: 2703TestPipe
This is a "drop in replacement" GN1Performance "ALUMINIM HIGH FLOW 3 ROW RADIATOR" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This product not only looks great in the car, but also most importantly keeps ... ( Click for more details )
Item Code: 270AluminumRad
This is a GN1Performance "BIG BOY FRONT MOUNT INTERCOOLER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Its a custom hand built aluminum front mount intercooler with the bar and plate core. This intercooler ... ( Click for more details )
Item Code: 270BigBoyIC
This all billet aluminum vacuum block is for any 1986-1987 Buick Grand National, T-Type, Turbo T, or GNX 3.8 liter turbo V6. This item replaces the stock cheap plastic piece and comes complete with 2 stud bolts and a gasket. This product ... ( Click for more details )
Item Code: 270billetvacblk
This is a GN1Performance "COLD AIR INTAKE" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The kit includes a custom fabricated 3 inch aluminum pipe, K&N air filter, and our custom mass air flow pipe. Also ... ( Click for more details )
Item Code: 270coldairkit
This is a GN1Performance "EXTREME FRONT MOUNT INTERCOOLER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Its custom hand built aluminum front mount intercooler with the bar and plate core. This intercooler ... ( Click for more details )
Item Code: 270ExtremeIC
This is a set of GN1Performance "KB HEADERS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.They feature HUGE ports and are welded all the way around each tube! These headers are only available in none polished ... ( Click for more details )
Item Code: 270headers
This is a GN1Performance "Engine Oil Cooler" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The kit includes a custom billet oil cooler adapter, 2 steel breaded lines, a brass oil filter adapter and the cooler ... ( Click for more details )
Item Code: 270oilcoolerkit
This all billet aluminum 72mm intake plenum is for any 1986-1987 Buick Grand National, T-Type, Turbo T, or GNX 3.8 liter turbo V6. With this plenum you will have a quicker throttle response and faster turbo spool up, not to mention it all ... ( Click for more details )
Item Code: 270plenum72
This is a GN1Performance "STOCK LOCATION POLISHED STRETCHED INTERCOOLER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. It has 23 rows, this intercooler features a beautiful POLISHED finish and an adjustable air ( Click for more details )
Item Code: 270POLISHEDSLIC
This is a GN1Performance "4 PIECE BILLET ALUMINUM PULLEY SET" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These pulleys are CNC machined with a high polished finish. The kit includeds the crank pulley, water ... ( Click for more details )
Item Code: 270pulleyset4
This is a GN1Performance "STOCK LOCATION STRETCHED INTERCOOLER" FULLY POLISHED for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. It has 23 rows, this intercooler features a beautiful finish and an adjustable air ... ( Click for more details )
Item Code: 270SLIC
This is a "STAINLESS STEEL HEATER CORE LINE" replacement for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6, which mounts up to the passenger side of the intake manifold. This is a perfect upgrade for those of you ... ( Click for more details )
Item Code: 270StHeaterLine
This is a GN1Performance "Stock Replacement Up Pipe" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This item is a great upgrade from the factory steel throttle body up pipe. It is polished 2.5" aluminum pipe ... ( Click for more details )
Item Code: 270StockUpPipe
This is a GN1Performance "STEEL 3.625 STROKER CRANK " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This is a narrow journal width crank. ( Click for more details )
Item Code: 270StrokerCrank
This is a "drop in replacement" SUPER EXTREME ALUMINIM HIGH FLOW 3 INCH 3 ROW RADIATOR" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This product not only looks great in the car, but also most importantly ... ( Click for more details )
Item Code: 270SuperExtRad
This is a GN1Performance "SUPER EXTREME FRONT MOUNT INTERCOOLER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.This SUPER EXTREME model is a custom hand built aluminum front mount intercooler that has a bar and ... ( Click for more details )
Item Code: 270SuperExtreme
This all billet aluminum 72mm throttle body is for 1986-1987 Buick Grand National, T-Type, Turbo T, or GNX 3.8 liter turbo V6. With this throttle body you will have a quicker throttle response and faster turbo spool up, not to mention it all ... ( Click for more details )
Item Code: 270TBody72
This billet aluminum 72mm throttle body and upper plenum is for 1986-1987 Buick Grand National, T-Type, Turbo T, or GNX 3.8 liter turbo V6. With this throttle body you will have a quicker throttle response and faster turbo spool up, not to ... ( Click for more details )
Item Code: 270tbplen72
This billet aluminum 72mm throttle body, upper plenum, and vacuum block combo is for 1986-1987 Buick Grand National, T-Type, Turbo T, or GNX 3.8 liter turbo V6. With this throttle body you will have a quicker throttle response and faster ... ( Click for more details )
Item Code: 270tbplenvb
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