What you guys need to do is install an O2 Sim before you slap on your headers cause once you get a CEL light it's on your car forever unless you clear the codes with BT Tool, and that thing is not cheap!
Stage 3 intake manifold and primary cat deletes is what you want. Leave the secondary on, it's quite possible you can pass emissions still, not too sure though.
I hope Raceland comes with with their stuff soon! OBX is not willing to confirm with me if these headers would work on the N52B25 the 2.5L engine.
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