Got a 440i gc w dual res delete. Just got mhd aswell and want to start pushing some power. I do prefer the sound of catted with the deeper tones compared to the loud raspy catless. However i also like that i can shoot gunshots with catless without worrying abt blowing cats, cause there are none. The smell is manageable sometimes… prices are completely different, catless is abt $300 cheaper. just want to know if i do go catted, am i safe to run soft or medium burbles or just not burbles at all. Is one more worth it than the other? I do want to push power but nothing excessive, still want the car for longevity. Ive also heard burbles are not good for the turbo( any truth to this?)

  • Temporum15B
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    1 year ago

    Id say catless unless you get emissions tested, dont go too crazy with the tuning for reliability sake. 400whp daily is plenty. ~450 crank