With only 550km on the clock, my SSV Redline went in for the Walkinshaw Pack. Could not imagine driving an 8 with such a subdued exhaust and weasy intake - result is complete transformation for the better but does change some aspects of driving. On thing I found interesting is how the Walkinshaw guys fit longer tail pipes. I noticed that the KPM tail pipe finished inside the line of the body. That will apparently increase drone.
View attachment 116168
Having said that I experience a great sound track on start up and under acceleration. At around 2k rpm in a high gear I hear some drone I do not like. At cruising speeds there is no drone at all, seems when the auto is shifting in standard mode it likes to hold a taller gear since the torque can carry the car at low rpm / speed. The sound however under such conditions is not good - to be polite. I now always flick over to sport shift and the car downshifts and doesn't hang around that tall gear low rpm zone. Interesting that the bi-modal exhausts from Walkinshaw run the exhaust gases through the mufflers around 2-4k rpm and open up after and at idle.