R56 Custom exhaust installed and now I have a few question
#1
Custom exhaust installed and now I have a few question
I had a custom exhaust installed this week and now I'm wondering what others have done with their custom installs. We ended up removing my resonator and second cat and adding a small Magnaflow Muffler with 4" tip. The sound is pretty good but I'm concerned that we removed too much. Who has removed both the cat and resonator? Do you loose low end and Throttle response by doing it this way?
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