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I guess I need to clarify...
OP if you are trying to make ALL the power.
Catted Header OP/FP and a tune. No catback. Maybe an axleback but that's not for power. (Custom tune for most power, OTS will get you 90&ish there)
OP lives in a state with emissions, and I feel telling people to do illegal shit to their car is a bad idea since removing the cat on a street driving car is illegal in the USA not just their state. The tune might make you fail. But flashing to stock is easy.
But if your goal is just noise, save the money and get an axleback and go from there.
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