I put a set of flow masters on my 2006 GT and what a disapointment, not much difference n the sound. I wonder if straight pipes would be louder and sound better...anyone ever run straight pipes. I live in Texas and need exhaust to pass inspection. I drove it home and no one noticed the dif between the stock and flows............) :
Flow masters
- Thread starter larbec7
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Wolvrin704
Member
You should probably ask guys in the S197 section. My '03 sounds great and I get compliments all the time for the sound of my Flows. BTW, which Flowmasters did you get? That can make a difference as well.
40's should be noticably louder. Mine were
get some magnapacks. They are nearly "straight" pipes. I had mine off (just mid pipe) and it wasn't very loud. The cats muffle the sound a lot
get some magnapacks. They are nearly "straight" pipes. I had mine off (just mid pipe) and it wasn't very loud. The cats muffle the sound a lot
smokin00GT
New Member
On the newer 3V mustangs, it is really hard to get that deep aggressive mustang sound that you are used to hearing when you think of a mustang. The best muffler that I have heard on a 3V that even comes close to "rumbling" is the Pypes violator. www.brenspeed.com has a whole line of pypes products and they also have sound clips on their site for you to hear.
GoalieStr1
New Member
I have magnapacks and it is wonderful. Great deep, throaty, LOUD sound. And it isn't all over the place, its a nice tone that many compliment. 
Seraphitia102
will post boobie pics for a supercharger
The mufflers on a 3V mustang are placed at the end of the car while the new edge cars and earlier had them placed just right about under the rear seat. The more pipe you have after a muffler, the throatier the growl.
The 3V mustangs pretty much swapped the position of the fuel tank and the mufflers of the older models. The fuel tank is now more inwards on the 3V with the mufflers outwards and vice versa for new edge and earlier.
Pypes now makes a mid-muffler system which are small little canisters that barely fit next to the fuel tank on a 3V GT to get some of the throatiness back.
kooldawg6
mine works really well and can take a fair amount
You will be heard from half a mile away under WOT!!!!! Or so I've been told
i hear the same thing from the neighbors! 
YELLOW42RCODE
Member
cowtown
Founding Member
+3 Flows.
And I re-iterate the comments above on the muffler location making the sound difference.
And I re-iterate the comments above on the muffler location making the sound difference.
kooldawg6
mine works really well and can take a fair amount
When I leave for work from my g/f's house at 5:15 am, I just start it and idle it down the street until I have to turn on the main road. Just last week her neighbors were outside. They said they hear me when I start it up, but they don't care since they are muscle car people too They told me they loved how mine sounds They have 2 '60s Vettes in the back yard, '92 Firebird and an early '70s Caddy with the 500 in it!
When I leave home the neighbors have never complained either. Hell, 3 houses in our cul de sac have 4 loud azz HDs!
They told me they loved how mine sounds They have 2 '60s Vettes in the back yard, '92 Firebird and an early '70s Caddy with the 500 in it!When I leave home the neighbors have never complained either. Hell, 3 houses in our cul de sac have 4 loud azz HDs!
Audioi
New Member
Audioi
New Member
Yes, I contacted Brenspeed and added the tune they recommended. It made a dramatic improvement plus my car is an automatic and it was like I added a new transmission to the car!
DeviousStang
New Member
cowtown
Founding Member
Got any dyno or anything to back that up? Everything I've seen on pretty much 90% of the mufflers for these cars show negligable performance improvements outside of your ear performance dyno.
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