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Originally Posted by 370zNewbie
I have a few questions, Do these require a tune after installment? Also, how do these intakes affect the sound of the engine/exhaust? And what are the gains?
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They don't require a tune and you'll be fine without one but a tune would definitely help. They sound louder and better than the stock air boxes especially since they're open filters. The gains are very minimal, probably around 2-7 hp but not really sure since I never tuned mine.