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Stage 1 exhaust system for all injection cars and late carb models using catalytic converters. This RC40 style twin box muffler bolts on directly after the cat for easy fitment. This stage 1 system isn't much louder than factory, but flows much better. Don't forget to get new hanger mounts (WC-DBP7104) and gasket (WC-GEX7761) and if you want to do a cat delete at the same time check out our cat delete pipe (WC-C-ARA664).

Performance Muffler System - "Catback" Stage 1 (RC40)

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Minis using catlaysts 1990on. All injection.

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