This 4000+hp capable intercooler uses Garrett Intercooler cores as the foundation of this intercooler. Proven time and again to be the absolute best intercooler cores on the market. The unique radially formed air tanks made from USA processed 3/16" aluminum are the strongest air tanks in the industry. Capable of supporting sustained boost pressures in excess of 100psi. Hose connections are available in 4" diameters in your choice of Hose Barb, VBand or HD Connections. -16ORB fittings are the standard water connection fittings and also include (4) 1/4-20 mount bungs welded onto the core.