Secondary cat delete
 

Hello there,
i own an 06 530i and recently got the remus axle back muffler and was surprised by how low the exhaust note is.. It is barely noticeable but i know that remus is one of the best in the business. moreover my question is if do the sec cat delete will the sound increase and from what i know there are no o2 sensors on the 2nd cats but rather only on the primary...
My question is will sec cat delete cause any drone or raspiness....
since remus is deep sounding...will it increase the volume of the sound B)