These COLD-CASE radiators are Tig welded 100 percent aluminum and absolutely beautiful. Don't buy a 3 or 4 row aluminum radiator! It doesn't cool as well as these oversize 2 row models. 100 percent TIG welded All Aluminum Polished tanks 16 fins per inch Corrugated fins that give more surface area and more thermal transfer Pressure tested For auto and standard trans (auto-trans-cooler) Direct fitment for 05-06 GTO Confirmed OTR Intakes That Fit: Vararam Radiator - 31 in W x 21 in H x 3 in D - Driver Side Inlet - Passenger Side Outlet - Aluminum - Natural - GM LS-Series - Pontiac GTO 2005-06 MPN: LMP5000A Radiator Specs Core Height 15 inch Core Width 30.25 inch Overall Height 21 inch Overall Width 31 inch Overall Thickness 3 inch Upper Hose 1.3 inch Lower Hose 1.3 inch Tubes (2) 1 inch Tubes Specifications Brand Cold Case Radiators Part Number LMP5000A Application Specific Yes Pass Single Row Number 2 Overall Width 31 in Overall Height 21 in Overall Depth 3 in Core Width 30-1/4 in Core Height 15 in Inlet Side Driver Side Inlet Upper/Lower Center Inlet Size 1-19/64 in Inlet Style Hose Barb Inlet Quantity 1 Outlet Side Passenger Side Outlet Upper/Lower/Middle Lower Outlet Size 1-19/64 in Outlet Style Hose Barb Outlet Quantity 1 Tube Size 1 in Fluid Cooler Yes Flow Direction Crossflow Cap Included No Material Aluminum Color Polished Finish Polished Quantity Each Fitment Vehicle Type: CarMake: PontiacFitment: 2005 - 2006 Pontiac GTO