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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 30x14x3. The inlets are 3" and the one outlet is 3".
Price: $549.00

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 aluminum flange to weld on your existing tubing and a stiffer spring to work on any application.

*Intercooler pipe not included in this kit 

Price: $189.00

Intercooler Extreme Front Mount
Product ID: ICExtreme

Details 

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 comes complete with all the aluminum pipes and hardware needed to put on your car today! The dimensions of this Intercoolers core are 24x11x3, and from tank to tank is 30.5 inches in total length featuring 3" inlet and outlets. Tube sizes are all 3 inches in diameter and are mandrel bent aluminum pipes with a mild polished finish to them. This intercooler is light weight and good for up to 800hp. This intercooler has no turbo lag. When purchasing please specify whether you have a stock or aftermarket throttle body.

  • Please specify when purchasing whether you have a stock or aftermarket throttle body and what size your turbo outlet is so we can provide you with the correct hoses.

Price: $699.00

Stock Location Stretched INTERCOOLER
Product ID: ICStockLocationSlic

Details 

This is a GN1Performance "STOCK LOCATION STRETCHED INTERCOOLER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This Intercooler features a newly designed 1 piece aluminum shroud! The Intercooler has 23 rows, and features a beautiful flat black powdercoated finieh and an aluminum sheet metal air scoop. The beauty of this intercooler is that it helps avoid over heating issues, when compared to the front mount intercoolers, this is the perfect everyday driver setup. The intercooler mounts directly to your original up pipe and turbo just as the stock one does. The sizes of this unit are; 13.5" wide (just like the factory) 15.5" tall, and a 3" thick core with a 2.5" inlet and a 2.5" outlet. Also included in this kit are hoses and clamps. This item is only available in a flat black finish for the core and a raw aluminum finish for the shroud.

  • Please specify when purchasing whether you have a stock or aftermarket throttle body and what size your turbo outlet is so we can provide you with the correct hoses.
Price: $699.00

Intercooler Super Extreme
Product ID: ICSuperExtreme

Details 

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 plate core .This intercooler comes complete with all the aluminum pipes and hardware needed to put on your car today! The dimensions of this intercoolers core are 27x17x3.5 Tube sizes are all 3 inches in diameter and are mandrel bent aluminum pipes.

Dont be FOOLED by the other Intercoolers like this one out on the market and the price marketing stratigies the sellers take on. Just cause its double the amount doesnt mean its any better or different for that fact. Let us "assure" you they all come from the same manufacturer, with no doubt.

"A great and functional product doesnt necessarily have to empty your wallet"

  • Please specify when purchasing whether you have a stock or aftermarket throttle body and what size your turbo outlet is so we can provide you with the correct hoses.

     

Price: $699.00

Pipes Hoses and Clamps Extreme Intercooler
Product ID: PipeComboExtremeIntercooler

Details 

This is a set of GN1Performance "EXTREME Intercooler Pipes" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This combo feature Mandrel bent 3" polished aluminum pipes with heavy duty silicone hoses and clamps.
  • Please specify what size throttle body and turbo outlet you have when purchasing.
Price: $259.00

Pipes Hoses and Clamps SE Intercooler
Product ID: PipeComboSEIntercooler

Details 

This is a set of GN1Performance "SE Intercooler Pipes" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This combo feature Mandrel bent 3" polished aluminum pipes with heavy duty silicone hoses and clamps.

  • Please specify what size throttle body and turbo outlet you have when purchasing.
Price: $259.00

4 Inch 90 Degree hose
Product ID: S4Inch90Degree

Details 

This is a GN1Performance "4" 90 DEGREE SILICONE HOSE WITH CLAMPS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.

*** Available in blue or black, please specify upon ordering

Price: $38.00

Stock Intercooler Aluminum Shroud
Product ID: ShroudStockIC

Details 

This is a GN1Performance "STOCK INTERCOOLER ALUMINUM SHROUD" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This shroud bolts directly to your stock intercooler and features a large opening to maximize the cooling of you stock intercooler. Also feature a high polished finsh which looks beautiful.
Price: $169.00

Stock IC Hose Kit
Product ID: StockICHoseKit

Details 

This is a GN1Performance "Stock IC HOSE AND CLAMP UPGRADE KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Kit includes (2) 2.5" silcone hose (1) 2" silicone hose and (6) heavy duty t-clamps. This kit is perfect for those who have the stock intercooler on their car and their original hoses have become dried up and brittle.

 

If you are running a Duttweiler neck on your stock Intercooler, select yes on the drop down below and we will send you a 2" to 2.5" silicone hose for that instead of a 2" straight. 

Price: $55.00

Aluminum Stock Up Pipe Replacement
Product ID: StockUpPipe

Details 

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 and also comes with (2) 2.5 hoses and (4) Heavy duty t clamps.
Price: $89.00



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