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Did you get around to fitting those Cats in? If so how does it sound?
I'm asking as I'm making my own blend of exhaust for my 135i which will be: Milltek Catless DPs, Milltek High Flow Catted centre section, Milltek resonator or Resonator delete, BMW PE.
Now I've heard your video I am pretty happy that I've opted for High Flow Cats as the Catless DPs and going totally Catless will turn things up to 11, a little too much for me in respect to loss of tone and increase in rasp. I've listened to a couple of videos featuring a Z4 35i without Catless DPs and it sounds perfect so it'd appear that the DPs and Cats there are doing a good job.
My one dilemma is, do I accompany the High Flow Cats with a resonator or leave all the refinement of tone up to the BMW PE... I'm not sure the PE can handle it all alone as the High Flow Cats are both smaller and higher flowing than the stock DP Cats and therefore will allow more rasp.
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