• Just how noisy is a 911 on ITB’s? I should probably establish that before making any further decisions on that front.

  • with filters on and an airbox, probably not much noisier, also helps it's all a distance behind you

    mine is only loud because the airbox is about 300mm behind the steering wheel effectively

  • In my experience of ITBs, pretty noisy if you're giving it the beans, not so noisy if you're just cruising. If you're concerned about it, just stick some extra soundproofing on the rear bulkhead inside the cabin.

  • They’re really fucking noisy on my car.

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