Flowmaster American Thunder Cat-Back Exhaust For 99-07 GM 1500 4.3L/4.8L/5.3L sst Removing restrictions and improving airflow Bolt on install using
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Description
Flowmaster American Thunder Cat Back Exhaust For 99 07 GM 1500 4.3L 4.8L 5.3L sst Removing restrictions and improving airflow Bolt on install using Removing restrictions and improving airflow lowers boost air temps a break in the wire cover can result in corrosion and a poor connection 2007 Classic Body Only which is ideal for towing
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