Subaru WRX STI with California Emission 2004, Ignition Coil by Karlyn STI®. STI. 1 Required per Vehicle. Coil Pack replaces the distributor. It features electronically controlled pack of ignition coils controled by the car's computer and as distributor it is used to create the spark for all engine cylinder's spark plug.
Notes: Use with Wire Set PN #673.
- Increases the amount of horsepowers
- Betters combustion
- The finest quality at a great price
- We carry everything needed to complete the job
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