NEWLY UPDATED (AGAIN!!, AGAIN!!) Now with 100% more billet aluminum T fitting
Industry first DOHC EJ Cylinder 4 Combustion Chamber Cooling kit increases coolant flow in the LH head to improve reliability by reducing detonation causing hot spots, reducing EGT delta and improving overall cooling system performance.

Each kit contains:

1x Custom machined and anodized 6061 fitting.

1x Billet Aluminum T (NEW FOR V7!)

1x Custom Formed NBR hose for universal fitment on all specified EJs

4x GDT custom made 304SS embossed, non perforated, rounded edge worm clamps.

Cooling mods are available from many online retailers: IAG, Six Star Motorsports, MAPerformance, RallisportDirect, Import Image Racing, Subimods and many others carry this modification. If I am out of stock, please feel free to purchase from them.

Fits all years and models except 2010+ LGT.  This model will require a 90degree fitting, another 8 inches of hose and 3 more hose clamps.

Installation Instructions: 

• GDT Cooling Mod Installation Guide