Signature Race Series Touge Techniques AN Fittings used for our in-house Race Team! - 18mm 1.5 thread to 10AN fitting Adapter - Used on 13B-REW to adapt custom oil cooler lines! - Anodized in Touge Techniques Midnight Black - Laser CNC Machined for precise fitment - Corrosion Resistant & Ultra Sealed for endurance racing - Aluminum featherweight Military-Spec construction