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I have a 98 2 door hoe with new oxy sensors and 230,000 miles on cats. Should i go with high flows? Has dual in and out flow like muffler. And stock pipes from manifolds. I need all the fuel mileage i can squeeze. I like the magnaflow high flos. Only reason i want to change. Is just got a 0430...- overdrive327s10
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- Replies: 12
- Forum: Engine Performance + Maintenance
