Help please 2005 f150 xlt 4x4
08-20-2017, 05:31 AM
#1
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Help please 2005 f150 xlt 4x4
I'm looking into replacing my stock cracked manifold on my 2005 f150 4x4 xlt with some flowmaster block hugger headers what I can't figure out is will my stock catalytic converter's work or do I have to get the high flow ones and if I do will those still pass emissions
Last edited by bear201430; 08-20-2017 at 05:32 AM. Reason: Forgot to add info
08-20-2017, 02:59 PM
#2
Mark
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Most shortie headers will bolt right up to your stock exhaust flange. You can use your existing cats and mufflers and will not effect emission testing.
08-21-2017, 06:15 AM
#4
Mark
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Yes.. all that air flow..lol