Air intake noise reduction (may sound crazy)

Hi all , I have a stage 1 map , and have a k&N apollo cold air intake fitted with cold air feed from outside , I still get a blow off style sound on gear change and normal air sucking noise as turbo gulps , is there anyway I can reduce the noises (I hate them) but when I return to engine cover with built in filter I lose power , and also the the engine cover anyway , and induction is the only way get rid of the engine cover permanently

I thought about dynamite style wrap around the apollo casing ?

Any ideas welcome


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For anyone in the same mindset , I used an apollo closed filter and a cold feed down into the wing and front grill area, now it's as quiet as the standard engine cover and apart from a roar on WOT , it's silent and I have all the gains back from the induction


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