SpeedFactory Racing 06-11 Civic Si (K20/K24) Ramhorn Turbo Manifold - T3, 44/46mm V-Band Wastegate Flange - SF-04-047CURRENT ESTIMATED MANIFOLD MANUFACTURING TIME IS 7 8 WEEKS. The SpeedFactory Racing K Series Ramhorn Turbo Manifold has an equal length design and spools larger turbos very quickly, producing broad powerbands that carry to the top of the RPM range. This manifold is for high power applications where large torque and great spool are necessary alongside big top end horsepower, making it suitable for drag race vehicles. Our Ramhorn is constructed from