This is how a 2011 Dodge Ram 1500 Crew with the 5.7L 390 HP Hemi sounds after I swapped the stock 26" monster muffler for the new DynoMax VT muffler. It is the 22" 3'" Single In / 2.5" Dual Out model # 17963. This muffler has what DynoMax calls "Valve Technology" which is pretty quiet when at idle or at highway speeds, but opens up at wide open throttle. It is really an improvement over the stock muffler, but has the advantage of Zero Drone at Highway Speeds. At the time of this video, the muffler has only been on the truck 24 Hours, and about 40 Miles. It should get a little louder with time after burn-in.
3" Dynomax VT Impressions
For all those who were asking.
The camera was sitting on my dash and picked up a lot of vibration.
So it sounds way lower than it does in real life.
2010 Dodge Ram 5.7L HEMI w/Dynomax Bullets
Custom duals with Dynomax Bullet mufflers & 5"
MBRP Exhaust tips. Other mods include
S&B Cold Air Intake & Moes Performance 87mm Throttle Body.
Filmed outside of my work, I didnt give it much revs due to the neighbor
behind the shop. He complains about the music being loud so i didnt wanna
give him another reason to complain.
2011 Dodge Ram 1500 5.7 Hemi Stock Exhaust
Here is a quick video of the start-up and rev of a stock 2011 Dodge Ram
1500 with the 5.7L 390HP Hemi. The stock muffler is a 26" monster and is
pretty restrictive. The Exhaust note
is very muted at all times. This is a very quiet truck in its stock
Dynomax Ultra Flo vs Walker Muffler Comparison - sound levels and sounds!
We've compared two mufflers in search of quiet(er) performance.
*EDIT* Dyno results
are in! 443 rwhp and 490 rwtq. Taking into account the 1.5 degrees of
timing we added, the mufflers cost NO power. Before we made 422 rwhp and
EDIT EDIT: Car has run a best of 10.77 @ 128 so far... still some left in
EDIT EDIT EDIT: The car turned a 10.55 @ 129.3 and the block and trans let
go. A Dart 363 and a built Powerglide are going in!