Yes they are the oval or rounded flows. Are the square ones louder or something? Even if the O/R H doesnt make it "crazy" loud I think it will make it louder and deeper sounding. And the HP gains will be nice.

 

Sounds great and looks 400% better too

Now you just gotta grab the bull by the horns and learn how to edit your movies hahahaha

 

I don't know what difference the square case makes on the Flow AT's. Maybe a Flowmaster expert can chime in.

 

The round case is the 50 series and isn't real loud but has a great tone. The square one is the 40 series and are considerably louder.

 

Hate to tell you but there will not be any hp gains. A friend of mine actually got slower E.T/MPH when he replaced the stock axlebacks with flowmaster A/T. There may have been something wrong with the flows. He got them from another person. At the1/8 mile track he and another friend of our who has a S197 were getting constant 8.5 at 85MPH. Both drivers had drag radials. Next time at the track, my friend put on flows and was only getting 9.1 at 79 to 80 our other friend was still getting 8.5 at 85

 

Does anyone have a sound clip of the flows showing the difference between the 40 and 50 series ab's. Was considering going to the 40 series but want to hear the difference first.

 

I really like the super 44's on our cars. very deep, and not as raspy.

 

Nice job and sound. Oh I had the a/m thunder and they where round back in 05 anyways