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Discussion Starter · #1 ·
I just had a Flowmaster 40 Series muffler installed on my RT and it sounds really good...when your at idle it is very quiet but when you put it down to the floor it sounds really cool...for $160 I think its the best money I spent...does anyone else have this same set up and what do you think of it.
 

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I've kind of always been a flowmaster guy. I think they sound REALLY good on just about any car (with a an 8 cylinder engine...not so good on those smaller cylinder imports...LOL). I don't have my charger yet but when I get it, I hope flowmaster has the entire catback out by then...there's no better upgrade than putting headers, an H or X pipe and a cat back on a car for the sound quality. A fast car SHOULD sound mean. :)
 

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I have the Flowmaster catback, it is been available for about a month now, and it can be seen on the main page of their website. Comes in 2.5" mendrel bent aluminized steel piping, two Delta flow 40 series, there best flowing muffler they have, into two resonator cans at the rear, then two stainless doublewalled 4" tips, also includes there own x/h-pipe.

Has a nice beefy sounding idle, low resonance at 2000rpms compared to other systems, and it screams when you get on it, sounds like an american V8 should sound. Gave a nice little kick to off midrange and high rpm pull.

My muffler shop charged me $100 to put it on and weld everything together. I used two JEG's prebent cylinder clamps to attach the back part of the tubing together, and where the catback bolts onto the stock downpipes. Surprizingly the stock pipes that come down from the exhaust manifolds look pretty good, and are 2.5" pipes also. The stock exhaust x-pipe, cut down immediately to a 2.25" pipe. I could really see how this could cause extreme turbulance, and a lot of backpressure!
 

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I just had the FlowMaster Super 40 Cat Back system put on this weekend. It has a nice growl and does add a lot to the mid range. It also is a great MDS Switch. You can hear the drone kick down when the MDS Activates. It is not overly loud, just a change in the tone. My only issue is that my installer put in the system a bit off center and the right pipe from the muffler through the resonator is touching the frame and the car feels like it is going to vibrate apart. It is going ion this afternoon for a tweek and should be fine after
 

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How did you just put one muffler on ? You need two mufflers when changing
out your exhaust. RT's are a true cat back exhaust. I hope you know what you
did if not I would make sure that you did the right thing.
Never heard of being able to put just one aftermarket muffler on an 300C, MAGNUM RT,
OR CHARGER RT.
 

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It was the right pipe from the right muffler. 2 Mufflers, 2 Pipes w/ resinators, 1 X-over pipe.
 

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i did flowmaster 40's with magnaflow resonators.... eh, it's just so-so.... lot's of drone in interior and it does not have enough growl... do you have any resonators???
 

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littleJohnnyfromNJ said:
i did flowmaster 40's with magnaflow resonators.... eh, it's just so-so.... lot's of drone in interior and it does not have enough growl... do you have any resonators???

I have the same set up and mine sounds incredible!! No drone at all, all growl. Maybe the installation needs to be checked on :neutral:
 

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TO: HODEGEE

"I have the Flowmaster catback, it is been available for about a month now, and it can be seen on the main page of their website. Comes in 2.5" mendrel bent aluminized steel piping, two Delta flow 40 series, there best flowing muffler they have, into two resonator cans at the rear, then two stainless doublewalled 4" tips, also includes there own x/h-pipe"


Did you buy the system #17405?

thats the system I was interested in buying and saw it released about a month ago. The online (flomwmaster) price was like 700 at the time, I found that system for about 570 at another online place, but I would really like to know, if it is a nice (delta flow) low tone, and not to sharp or raspy when punching it... let me know please.
 

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nice deep low tone, not raspy at all like my magnaflow were. Yes it is the same one posted on their website. Summit and Jegs have it for about $540 shipped to your door. it still drones, a little, but nothing like my magnaflow system did.
 

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The only way I have heard to change out the exhaust is to do a complete kit.
The cheapest i have seen is the Flowmaster set up at $550.00 installed at a really
reputable muffler shop here in Dallas, Tx. They install two new 40 series mufflers
new pipe all the way back , cut out resonators, and new larger tips.
I guess this is the route I'm gonna go. This is the same set up they have done
on Magnums.
 

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Discussion Starter · #15 ·
160 was for the mufflers not doing anything else to the resonators...just cut out the huge muffler and install the two flowmasters thats it but for 160 the car sounds totally different but didnt want the car to sound real mean just when you get on it it does
 

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I wanted as freeflowing as possible so the mendrel bent pipes at 2.5" compared to stock 2.25" pipes were mandatory, plus I want the resonators, cause I hate drone.
 

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I am also waiting for the Mopar exaust. They say that it's going to be way better than the Flowmaster. I will wait a little bit more for this baby.
 

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hodgeee said:
I have the Flowmaster catback, it is been available for about a month now, and it can be seen on the main page of their website. Comes in 2.5" mendrel bent aluminized steel piping, two Delta flow 40 series, there best flowing muffler they have, into two resonator cans at the rear, then two stainless doublewalled 4" tips, also includes there own x/h-pipe.

Has a nice beefy sounding idle, low resonance at 2000rpms compared to other systems, and it screams when you get on it, sounds like an american V8 should sound. Gave a nice little kick to off midrange and high rpm pull.

My muffler shop charged me $100 to put it on and weld everything together. I used two JEG's prebent cylinder clamps to attach the back part of the tubing together, and where the catback bolts onto the stock downpipes. Surprizingly the stock pipes that come down from the exhaust manifolds look pretty good, and are 2.5" pipes also. The stock exhaust x-pipe, cut down immediately to a 2.25" pipe. I could really see how this could cause extreme turbulance, and a lot of backpressure!
Are the pipes 2.25" all the way out to the mufflers?
 
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