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Wastegate Springs
Product ID: 1WastegateSprings

Details 

This is a GN1Performance "SPRING FOR A 46MM WASTEGATE" Please choose which you would like and make a note of it on the check out page. Each purchase is for ONE spring only. From right to left they are: 

1.Small red= 4.3 PSI

2.Small green= 5.8 PSI

3.Brown= 6.7 PSI (90% of the time this spring will keep boost levels from 10-25 PSI)

4.Small blue= 7.25 PSI

5.Large red= 10.15 PSI

6.Large yellow= 15.9 PSI 

 

 

Price: $27.00

45 Degree Valve Covers Complete with Breaters
Product ID: 45DegreeValveCovers

Details 

This is a set of "BUICK V6 VALVE COVERS WITH 45 DEGREE ANGLE BREATHERS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These valve covers feature the new built in 45 degree angle tubes for the breathers to get rid of oil leaks from the breathers due to the angle of the breathers they also have a creative block plate to help stop that issue. These valve covers are all one peiece with the tube molded into the design. If you having blow by leakage issues leading to oil dripping on your headers and creating smoke then this is the right item for you. All the hardware is included, bolts, rubber grommets, K&N breathers, and valve covers. (no gaskets)
Price: $289.00

Billet 46mm VBand Wastegate
Product ID: 46mmWastegate

Details 

This is a custom "BILLET 46mm WASTEGATE " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This comes with all of the hardware shown in the pictures. Include a stainless steel flange to work on any application.
Price: $169.00

4 Inch Cold Air Intake System Without MAF
Product ID: 4InchColdAirIntakeNoMaf

Details 

This is a GN1Performance "HUGE 4" COLD AIR INTAKE SYSTEM" 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 huge 4 inch aluminum pipe, 4" K&N air filter, and the hose and clamps. This is item is for buick owners who are running a stand alone fuel management system (fast, BIG stuff, etc)
Price: $225.00

4
Product ID: 4InchSingleShotExhaust

Details 

This is our ALL NEW GN1Performance "4" Inch Single Shot Cat Back Exhaust System" for a 1986 or 1987 Buick Grand National, T Type, or Turbo T 3.8 liter turbo V6. This 4 inch exhaust kit comes complete with a custom muffler, clamps, and hangers which is everything you need to bolt this kit on your car today! This kit is a direct "bolt in" no welding or cutting is needed! The system is constructed out of 304 stainless steel and features a high polish finish. The exhaust system is polished stainless and looks beautiful under the car.
Price: $549.00

60lb Injectors and Chip
Product ID: 60lbInjectorsandchip

Details 

This is a "60lb Fuel Injectors and Chip Kit " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This kit comes with everything you see in the pictures. Th injectors are high impedance and work for many different applications.

Price: $489.00

Billet 60mm VBand Wastegate
Product ID: 60mmWasteGate

Details 

This is a custom "BILLET 60mm WASTEGATE " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This comes with all of the hardware shown in the pictures. Include a stainless steel flange to work on any application.
Price: $189.00

Aluminum Gas Tank
Product ID: AluminumGasTank

Details 

This is a GN1Performance "Aluminum Gas Tank" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Saves 5 lbs over the stock tank and eliminates the need to cut your trunk floor to install a fuel cell.  Not sold with any hardware and you must come up with your own straps to mount the tank. This all aluminum gas tank features a sump at the rear and a bung for a return line as well.  The tank has baffles inside to decrease fuel sloshing.  Designed for use with an external fuel pump and your stock fuel level sensor.  Can be used with an in tank pump with minor tweaking of the pump return.  You must also adapt a fuel filler tube to the tank. 

*FOR OFFROAD USE ONLY 

Price: $395.00

Billet Aluminum AC Cover
Product ID: AluminumPulleyAC

Details 

This is a GN1Performance "BILLET CNC ALUMINUM A/C COMPRESSOR COVER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This cover is CNC machined with a high polished finish, these covers look very nice, but they are also extremely light weight!

MADE IN U.S.A!

Price: $79.00

Billet Aluminum 4 piece Pulley set
Product ID: AluminumPulleySet4

Details 

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 pump pulley, power steering pulley, and last but not least the alternator pulley. Not only do these pulleys look very nice, but they are also extremely light weight!

MADE IN U.S.A!

Price: $305.00

Billet Aluminum 6 piece Pulley set
Product ID: AluminumPulleySet6

Details 

This is a GN1Performance "6 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 pump pulley, power steering pulley, tensioner pulley, alt fan, and last but not least the alternator pulley. Not only do these pulleys look very nice, but they are also extremely light weight!

MADE IN U.S.A!

Price: $399.00

Aluminum 3 Row Radiator
Product ID: AluminumRadiator

Details 

This is a 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 your car running cool especially for those of you running front mount intercoolers. Not to mention this item will lighten up the front of your car. The radiator also has transmission and motor oil hook ups. The dimensions of this radiator are 31x18x2.5 and only weighs 13lbs!

Price: $375.00

Angled Lower Turbo Oil Return Fitting
Product ID: AngleOilReturn

Details 

This is a GN1Performance "45 DEGREE ANGLE LOWER TURBO OIL RETURN" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Constructed out of biller aluminum and a AN #10 fitting.
Price: $25.00

ARP Head Studs
Product ID: ARPHeadStuds

Details 

This is a Set of "ARP HEAD STUDS " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
Price: $135.00

ARP Main Studs
Product ID: ARPMainStuds

Details 

This is a Set of "ARP MAIN STUDS " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
Price: $109.00

A Super Extreme Rad and Dual Ho Spal Fans Combo
Product ID: ASuperExtremeRadandHoFansCombo

Details 

This is a GN1Performance "SUPER EXTREME ALUMINIM HIGH FLOW 3 INCH 3 ROW RADIATOR AND DUAL SPAL FANS COMBO KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. THIS IS A DIRECT DROP IN PLUG AND PLAY! This product not only looks great in the car, but also most importantly keeps your car running cool especially for those of you running front mount intercoolers. Not to mention this item will lighten up the front of your car. The radiator has transmission and motor oil hook ups. The dimensions of this radiator are 31x18x3 and only weighs 13lbs!  The fans have the correct plugs to plug right into your factory harness. Comes with 2 HIGH FLOWING HIGH OUTPUT 12" inch SPAL fans (1360 cfm EACH), and draw 13.5 amps. Also includes a relay kit to allow full  power and advantage of these fans with a delay for the second fan so the kit doesnt draw too many amps at once avoiding blown fuses. The shroud is hand built out of aluminum with tabs, and mounting hardware. The shroud dimensions are 25x14x1.
Price: $799.00

Twin Turbo Intercooler
Product ID: ATwinTurboIntercooler

Details 

This is a GN1Performance "TWIN TURBO 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 twin turbo intercooler with the bar and plate core. The core itself is 24x7x3. Overall dimensions are 29x13x3. The inlets are 2.5" and the one outlet is 3".
Price: $299.00

Aluminum Battery Box
Product ID: BatteryBox

Details 

This is a GN1Performance "ALUMINUM BATTERY BOX KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This is a all aluminum battery box, perfect for mounting in the trunk of your race car. Comes with everything in the pictures and cables also.

Price: $139.00

Billet Main Caps
Product ID: BilletMainCaps

Details 

This is a Set of 2 "Billet Center main caps " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
Price: $169.00

Billet Vacuum Block
Product ID: BilletVacuumBlock

Details 

This is a "BILLET ALUMINUM THROTTLE BODY VACUUM BLOCK" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This item replaces the stock cheap plastic piece. Our Vacuum block comes complete with 2 stud bolts, and a gasket. (Brass fitting not included). This item is made in the U.S.A. and has a billet machine finish to it.

Price: $79.00

Billet Blow Off Valve
Product ID: BlowOffValve

Details 

This is a "Billet Aluminum Blow Off Valve". This comes with all of the hardware shown in the pictures. Includes a stainless steel and aluminum flange to work on any application.

*Intercooler pipe not included in this kit 

Price: $129.00

Brass Turbo upper Oil Return Fitting
Product ID: BrassOilRetunFitting

Details 

This is a GN1Performance "BRASS UPPER TURBO OIL RETURN FITTING" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
Price: $25.00

Pair of Cometic Head Gaskets
Product ID: CometicHeadGaskets

Details 

This is a pair of "COMETIC HEAD GASKETS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6

These gaskets come in .027, .040, and .060 thousandths, please specify which you would like upon purchasing. 

Price: $198.00

Comp Turbo CT43 6765-Triple Ball Bearing Billet Turbo
Product ID: CompTurboCT43Series67653BB

Details 

This is a Comp Turbo "CT-43 6765 TRIPLE BALL BEARING Series Billet Turbo" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The CT-43 Turbo with CT 67 Billet compressor wheel and HE65 light weight 10 blade Turbine wheel. It has a 4" intake and a 3" outlet. This turbo is good for anywhere from 500-950HP. This turbo has a TRIPLE ball bearing configuration (the only Turbo on the market with this technology) and is also equipped with a .63 exhaust housing and a anti-surge compressor housing. This model also features a a high polished finish.

*This item is also available in .82 exhaust housing, please specify when ordering.

Price: $1,595.00

Comp Turbo CT4 6765-360 Billet Turbo
Product ID: CompTurboCT4Series67360

Details 

This is a Comp Turbo "CT-4 67-360 Series Billet Turbo" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The CT-4 Turbo with CT 67 Billet compressor wheel and HE65 light weight 10 blade Turbine wheel. It has a 4" intake and a 2.5" outlet.   This turbo is good for anywhere from 500-750HP. This turbo has a standard 360 Journal bearing configuration and is also equipped with a .63 exhaust housing and a anti-surge compressor housing. 

*This item is also available in .82 exhaust housing, please specify when ordering.

Price: $1,095.00

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