I think i will leave the headers thing for some other time..
For the manifold i will probably pick the z1 because it is cheaper and ive never heard complains about it..
Currently i have ark dt-s ex. + berk hfc's + stillen gen 3 intakes and now when i add the z1 manifold what will happen if i dont tune my car?
Here in my country it is very hard to get tune especially for this type of car...so is it that bad if i dont tune my car?
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