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installed mbrp 4 in turbo back with cat and muffler delete
I dont know what to think about the sound, it sounds like a huge hair drier when at idle, and it has the V8 rumble in drive, the whistle of the turbo definently put a smile on my face when i pulled out of the shop
It seems to have lost upper rpm power though, do i need to disconnect battery or something to let it reprogram more airflow?