I've been disappointed in the lack of engine-braking in the 6.0l SS. Thought it must have been a function of the engine package. A few days ago I fitted "J-Pipes" and can really hear the engine. It seems like there is a one or two second delay between throttling off and the start of engine braking. The local "go-to" speed shop say this is caused by the lack of throttle response......... sounds fishy to me.
A question for you guys..... is this normal? When I let off on the throttle, the revs seem to stay the same for a long time, then the car starts to engine brake. If I push the clutch, the revs die back to idle quickly......
On a side note, I've ditched the pipes...... they came off a VE Clubsport, and were 150mm too short for the ute. And were noisier inside the car than outside. Have my eye on the W310 package, seems a new dealer might soon be available in Adelaide......