These DPR intercooler piping kits are constructed from aluminium and come complete with silicone joiners and hose clamps. Designed to suit the RB25 engines in Skyline Cefiro, Laurel etc etc. Note: Photo above is actually the RB20 kit, not the RB25 kit. Some adjustments may be required when installing aftermarket intercoolers or intercooler piping kits.