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Gutting Cat on 2004 Legacy GT-B (BL5)

Heylin

By Heylin
in Legacy & Outback

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Heylin Full License

Heylin

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Getting ECU reflashed soon and wondering if its a good idea to get the cat gutted before ? its done 63,000kms

Anyone done this ?, worth doing ? easy to do ?, any bad points ?

Ive always gutted the cats on my jap cars, but this is the first Subaru ive done. Advice appreciated.

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Heylin Full License

Heylin

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Does the GT have 2 cats ? one in up pipe and one underneath the car just before Y pipe ? Any benefit to removing just the one underneath the car ? not sure I want to shell out for a new up pipe, and not really wanting a louder exhaust.

Mabey im best just to leave it.

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Jakee Motormouth

Jakee

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I thought they had one mid way back, and one at the Y pipe? Just cut them out and put some pipe in there. If you are getting a reflash all good, otherwise you may encounter problems with overspooling due to back pressure. I think. Thats what I have learnt on here :)

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