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do i need a tune
Hi all,
I currently have fabspeed sports cat and remus catback exhaust with BMC drop in filter on my N55 M2.
I m considering to replace the oem boost and charge pipes as the charge pipe has already failed once on me. Once I install the boost and charge pipes will I be required to have a tune? or keeping the factory tune is suffice?
sorry as I am a novice at this field
thanks in advance
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