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Flowmaster 40/50 series compare?
https://www.slantsix.org/forum/viewtopic.php?t=30692		 Page 2 of 2
Author:  Aggressive Ted [ Sat Oct 11, 2008 11:16 am ]
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I am running the all welded Thrush $29.00 version of the Flow Master 40. 2.25" pipe all the way to the bumper and turned down. The sound is very mellow on up through 2500 rpm. That is 60 mph for me with the 2.76 gears.
After 2500 it will get louder which helps me to keep the speed in check. My commutes are 130 miles a day. I get a slight drone at 30 mph, 1 mph above or below it's gone, other than that it is great! :D I like the sound with the engine advanced allot. It has a nice peppy on step feel and sound.
Author:  dusterguy225 [ Sat Oct 11, 2008 2:37 pm ]
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Aggressive Ted,

Do you have headers or sock manifold? Im thing about the 2.25 or 2.5 exhaust with the same muffler, stock manifold. Do you have a vid? I would like to hear it! :D
Author:  Aggressive Ted [ Sun Oct 12, 2008 12:50 pm ]
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Running the stock manifold for now. It has been ported up top and down at the bottom to match the exhaust pipe. It takes a fair amount of time to port it out but well worth the effort. It makes a noticeable improvement in power and in mileage.

Some one posted a clip of a blue Dart Sport of Duster with dual FlowMaster 40's. Mine sounds very close to that. Very crisp sound at idle on up through 2500 rpm, then roars when you open it up.
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