I've currently got Megan headers that are 2.5" piping. Im going to be doing a full custom exhaust in the spring and I'm wondering whether to keep it 2.5" all the way or get a reducer? I originally was going to keep it but some feedback is that it's too big for n/a i4. My other question is about dual or single. I know there's supposed to be better performance with single exhaust and it makes sense, but the dual is just so sharp and clean looking. Would it really be worth getting single?
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