HKS Cast Iron Turbo Exhaust Manifolds are available for custom turbo kits on select turbocharged & naturally aspirated vehicles. These high quality cast units offer great flow characteristics and durability for mounting turbos & wastegates. Currently, cast iron turbo manifolds are available for the following vehicles: Acura RSX 2002-2004, Honda Civic 2001-2003 1.7 and Civic Si 2002-2004, Mazda RX-7 1993-1996 Turbo, and Toyota Corolla GTS 1985-1987.
| Part # | Vehicle Make, Model and Year | Engine Code | Flange Type | Wastegate Type | Price |
| 14019-XA002 |
Acura RSX 2002-2004 | K20 | T25 | Internal | $213.75 |
| 14019-XA001 |
Honda Civic 2001-2003 1.7 | D17 | T25 | Internal | $118.75 |
| 14019-XA002 |
Honda Civic Si 2002-2004 | K20 | T25 | Internal | $213.75 |
| G17141-Z60020-00 |
Mazda RX-7 1993-1996 Turbo (Replaces 17141-130327) | 13B REW | T04 | External (Standard or Racing) | $470.25 |
| 17141-141158 |
Toyota Corolla GTS 1985-1987 | 4AGE | T25 | Internal | $270.75 |