M4X
Well-known member
- Thread starter
- #1
Hey guys,
Today I removed the muffler from the stock catback (left the resonator intact, along with the factory hardware).
I put a turndown right before the axle as that seemed like the best option with the location of the spare.
(Please forgive the factory installed rust option.)
Sounds great to me, there is little-to-no "trumpeting/hard throttle popping" as you would typically get with a 2-into-1 configuration, the drone in the cab exists at lower RPMs but it is minimal since it is dumped so far behind the driver's seat.
Cylinder Deactivation happens above 15mph and from someone who drove an MDS hemi around for a while the tell-tale sounds of it kicking in and out are there, you hear that "blopping" sound and the change in exhaust tone.
Sport mode disables it, but that seems to be the only way I've found so far.
The deactivation is less pronounced than it was on my 1500 so I can live with it until we can find a solution to it--im curious as to what other people discover in that avenue. I'm guessing it will probably require a tune.
I'll post some sound clips later today. In typical Texas fashion it's too windy to record anything at the moment.
Edit: On another note, this truck is averaging around 16mpg city and has less than 100 miles on it. Really stoked about that and I'm sure Cylinder Deactivation is contributing to it. If we found a way to disable it without sport mode I'd like an option to enable it whenever I wished.
Today I removed the muffler from the stock catback (left the resonator intact, along with the factory hardware).
I put a turndown right before the axle as that seemed like the best option with the location of the spare.
(Please forgive the factory installed rust option.)
Sounds great to me, there is little-to-no "trumpeting/hard throttle popping" as you would typically get with a 2-into-1 configuration, the drone in the cab exists at lower RPMs but it is minimal since it is dumped so far behind the driver's seat.
Cylinder Deactivation happens above 15mph and from someone who drove an MDS hemi around for a while the tell-tale sounds of it kicking in and out are there, you hear that "blopping" sound and the change in exhaust tone.
Sport mode disables it, but that seems to be the only way I've found so far.
The deactivation is less pronounced than it was on my 1500 so I can live with it until we can find a solution to it--im curious as to what other people discover in that avenue. I'm guessing it will probably require a tune.
I'll post some sound clips later today. In typical Texas fashion it's too windy to record anything at the moment.
Edit: On another note, this truck is averaging around 16mpg city and has less than 100 miles on it. Really stoked about that and I'm sure Cylinder Deactivation is contributing to it. If we found a way to disable it without sport mode I'd like an option to enable it whenever I wished.
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