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I installed one about a month ago when I replaced water pump and thermostat. Honestly didn't notice any difference in drivability or sound. I was 100% stock other than JB4.
Last week I installed JB4 intake. Now I can really hear the turbo but also the blow off valve Pshhhh. I enjoy the sound of the turbo spool but not a fan of the blow off.
Will be installing DPs at some point in the next few months. Maybe that will increase other noise enough to partially drown out the blow off.
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