I've got the MBRP on my 7.3 PSD and 2 buddies have it on their 6.0 PSD's and we all love em. Another friend has the Magnaflow on his 7.3 PSD and his is pretty good, not quite the finish of the MBRP. A couple of other friends have the banks, one 7.3 PSD and one 6.0 PSD, both the Magnaflow and the MBRP sound way better and have better finishes. IMHO