Milltek 4-2-1 Exhaust Manifold Header Honda Civic FN2 Type-R Civic CupMilltek exhaust manifold for the Honda Civic Type R FN2 as required and used in the Civic Cup championship. This header is produced using high quality, aircraft grade 304 stainless steel. Mandrel bending ensures optimal flow through the bends and the larger bore gives increased performance without sacrificing the mid range torque.