Supertech Valves B-Series Inconel Exhaust

This is the specific valve set we use on our SFWD Civics.  We use the Inconel Exhaust Valve which can withstand high temperatures & Stainless Intake racing valve for turbo/supercharged engines. Supertech Performance Valves - High Flow Rates - Less Friction - More Power - Featuring Black Nitrided Treatment! Note: This is a complete set of 8 Exhaust Valves Supertech Extreme Flow Performance Valves for Pro Street and Racing are engineered for High RPM and High HP. Extreme Flow Valves outperform any other valve on the market today, and with their Nitride Coating are perfect for High Temperatures (and run cooler which improves value life), Nitrous, Turbos and Superchargers.For naturally aspirated motors these valves will give you a much greater cylinder flow for good HP gains.   Manufacturing/Description Intake and Exhaust Valves are One Piece Forged, High Temperature, High Nickel, Stainless Steel Alloy. Valves are CNC finished to strict tolerances making these valves the choice for th