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5.4L F-150 with Roush Off Road and two Magnaflow 94106 cats. Factory exhaust manifolds. Warm start and revving to about 3000rpm
2,177 views
5.4L F-150 with Roush Off Road and two Magnaflow 94106 cats. Factory exhaust manifolds. Cold start and revving to about 3000rpm
1,791 views