Decades of race engineering are incorporated into every part Skunk2 develops. Built to fit the '18 - '20 Honda Civic Type R engine, our Alpha downpipe features the same level of quality and craftsmanship found in all our products. Featuring a large, true 3 - in. pipe diameter built from 304 Stainless Steel, each downpipe is CNC Mandrel Bent to provide maximum exhaust flow. Robotically TIG welded joints, heavy duty flanges and a high - quality stainless steel flex section ensure exact fitment and no leaks due to engine vibration and movement under extreme driving conditions.