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Home > Subaru > Impreza > 93-01 Impreza (GC/GF/GM) > Exhaust > Catalytic Converter

Bosal OEM Dual catalytic converter pipe

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Bosal OEM Dual catalytic converter pipe
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$489.00
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Description
Worldwide manufacturer of OE, replacement, and high performance exhaust systems, catalytic converters, and related components. 49 state legal and OBD II Compatible. Aluminized piping for long life. 

Premium Load

Bosal brings a wealth of OE experience to their aftermarket catalytic converters by utilizing many OE components and processes in their aftermarket manufacturing. That’s the advantage to being an OE supplier. This synergy, along with massive loadings of precious metals to overcompensate for the high demands of high mileage vehicles, allows Bosal to create a superior catalytic converter versus the normal aftermarket product. This is why their converters have the reputation of solving the problem the first time. 

ECM Reprogramming May Be Necessary To Keep MIL Off

Subaru of America states in Service Program Bulletin WWF-89 from 4/2002 that certain vehicles may require ECM programming to prevent MIL illumination.  The ECM logic for the air / fuel ratio circuit may not be broad enough to accept signal parameters of the air / fuel ratio sensor.
If the air / fuel ratio sensor signal fluctuates repeatedly beyond existing parameters of the ECM logic, the MIL will illuminate steadily during vehicle operation.  By reprogramming the ECM, the air / fuel ratio signal parameters will be broadened to correct this condition.

This is a software issue and does not impact drivability or vehicle emissions.  For the vehicles referenced above, it is recommended that the ECM be reprogrammed prior to replacing the original catalytic converter to obtain a more accurate MIL status.

For complete details, refer to Subaru Service Program Bulletin WWF-89 dated 4/2002.


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