Defiant
DSM Wiseman
- 34,753
- 201
- Jan 13, 2003
-
glorious Galt,
California
Some DSMs do already have an external cooler besides the cooler mounted in the radiator. When an aftermarket cooler is installed, it replaces the factory external cooler. The internal cooler may or may not still be used, as posted. For the street, it's better to use both. It not only cools, but also keeps the trans fluid at operating temperature in cold weather.