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Do I Need a Muffler on my Ford F350 Diesel Truck?

Do I need a muffler on my Ford F350 Diesel? It came stock without a catalytic converter. I am considering an aftermarket exhaust as well.
Answer:

The muffler is not inspected during the emissions test. It is required for noise suppression and other practical and legal purposes, but will not cause a vehicle to fail the inspection if it is not present. As for installing an aftermarket exhaust system, you may do so. Since your Ford diesel truck came stock without a CAT, you can install an exhaust system so long as no emission systems are modified during the installation. posted by SmogTips Support

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