Flow Master Mufflers
Thread Starter
Intermediate
Joined: Sep 2009
Posts: 43
Likes: 0
From: KY
Flow Master Mufflers
I dont see many threads on flowmaster exhaust.I am considering this system for my 91 . Anyone here use this system on their car? How is the sound/performance? Looks like this sells for about $475 is this a good deal or should i keep looking?
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
From what I've read most of the Flowmaster individual mufflers are too loud in the cabin of our cars. But, I've been running the Flowmaster Force II cat-back for over 10 years, and love the sound, very little if any interior resonance.
Pro
Joined: Apr 2008
Posts: 542
Likes: 0
From: middle of Illinois
I don't have a whole flowmaster system on my LT1, but I have their Delta Force mufflers and love them. Of course, I like mine loud. It's not open headers loud, but it's louder than most street cars.
Racer
Joined: Sep 2009
Posts: 414
Likes: 0
From: Oxford CT
This car is still new to me so I don't mind the volume at all. The sound puts a grin on my face whenever I start it up and, it turns heads. I'd only consider changing it out if I install long tube headers down the road. I kind of wonder if I'll be able to hear myself think inside the car after a header install.
Mike
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
I have flowmasters on my 91 I love the sound around town. I get resonace at 70mph so bad it gives me a headache.
From what i have read here on the forum any exhaust exept corsa is going to have some drone
From what i have read here on the forum any exhaust exept corsa is going to have some drone
Safety Car
Joined: Jul 2008
Posts: 3,966
Likes: 4
From: Made In America
St. Jude Donor '10-'11
I have stock exaust manifolds, true dual 2.25 mandrel bent piping no cats/emissions and flowmaster mufflers 40 series. Not loud enough. Going to get headers next. Tried muffler eliminators but sounded like garbage. Once I get headers and a CAI, should be loud to where I want it.
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Instructor
Joined: Sep 2009
Posts: 182
Likes: 1
From: Greenville SC
flo's
I have Flowmasters on my 84, and they are pretty loud. But it's not obnoxiously loud. The tone is actually fairly nice, though at low speeds it's noisy in the cabin.
Not for the shy or faint hearted.
Not for the shy or faint hearted.
Pro
Joined: Apr 2000
Posts: 696
Likes: 18
From: Jenkintown PA
Had flowmasters on my '91 coupe and changed them out to Magnaflow cat-back system. Both have a drone.....at cruising speed, but I would say the flowmasters had a more severe drone and were basically louder all around. I went with the Magnaflow system mainly b/c of the looks and the fact they are stainless. Most of the forum members, as said previously, agree that Corsa are the best, but certainly pricey in comparison....
SAVE THE WAVE
SAVE THE WAVE
Instructor
Joined: Aug 2008
Posts: 114
Likes: 0
From: Oceanside Ca.
See if I can do this...http://www.youtube.com/watch?v=Kjcr6msKv9I
The exhaust really doesnt drone that much...Im happy....It definitely turns heads now when I get on it.The Ricers,with their fart pipes dont stand a chance.
The exhaust really doesnt drone that much...Im happy....It definitely turns heads now when I get on it.The Ricers,with their fart pipes dont stand a chance.
Last edited by Sparkostatic; Oct 20, 2009 at 07:47 PM.
Le Mans Master
Joined: Jul 2007
Posts: 5,356
Likes: 2
From: No HOA, New Hampshire
Cruise-In X Veteran
St. Jude Donor '09
My L98 stock with a FlowMaster 50 series cat back allows you hear the stereo and have a conversation at any speed.
Team Owner
Joined: Dec 2000
Posts: 21,094
Likes: 282
From: Phila., PA burbs
On my 91 I have headers, 2.5" duals (no cats), an x-pipe, and 40 series Flows. I think it sounds great from outside of the car, but it'll rattle the fillings out of your teeth when it hits the "drone zone" 
Pro
Joined: Apr 2008
Posts: 542
Likes: 0
From: middle of Illinois
Mine, with an x instead of the resonator, got loud inside the cabin around 2000 RPM. When I did my spring project, I went to a 3.73 gear and it had an unintended result, it moved the cruising RPMs at 70 to about 2500. Everyone who rides in it says "wow, your car is actually quieter now." It's not, far from it, but inside it seems that way.
Drifting
Joined: May 2002
Posts: 1,509
Likes: 3
From: Hazel Park MI
I have the TPIS catback with the flowmasters, but I don't know what series they are. There is a slight drone in the lower RPMs, but it is bearable. It is not very loud outside the vehicle, marginally loud when stomped on....
Intermediate
Joined: Jun 2009
Posts: 34
Likes: 0
My PO installed some Flowmasters on my 91 6-spd vert. Mufflers only, no other exhaust mods. Sorry, I don't know what model, anyone know how to tell?
I was apprehensive at first, since I had previously test-driven a 95 LT1 with Flowmasters that were obnoxiously loud. I was VERY pleased. Loud enough to widen my smile, but quiet enough not to intrude on the stereo/conversation. I have some drone at highway speed, but I don't even notice it unless I'm climbing a hill. Level ground is pretty quiet. Of course, most of my driving is top-down, which I think drops the exhaust noise a lot. I still have the original mufflers, but have never even been inclined to put them on.
Sparkostatic: Do you have other mods other than the mufflers? Mine sound much more steady at idle. Otherwise, they sound very similar to your vid, though maybe a tad quieter in cabin.
SB91
I was apprehensive at first, since I had previously test-driven a 95 LT1 with Flowmasters that were obnoxiously loud. I was VERY pleased. Loud enough to widen my smile, but quiet enough not to intrude on the stereo/conversation. I have some drone at highway speed, but I don't even notice it unless I'm climbing a hill. Level ground is pretty quiet. Of course, most of my driving is top-down, which I think drops the exhaust noise a lot. I still have the original mufflers, but have never even been inclined to put them on.
Sparkostatic: Do you have other mods other than the mufflers? Mine sound much more steady at idle. Otherwise, they sound very similar to your vid, though maybe a tad quieter in cabin.
SB91
Instructor
Joined: Aug 2008
Posts: 114
Likes: 0
From: Oceanside Ca.
As far as exhaust mods,mufflers only.I did have a new "Hi Flow" main cat put on.But I guess their all Hi Flow now.Im not sure if the main cat would be a factor since the previous owner had a replacement installed just prior to my purchase
Last edited by Sparkostatic; Oct 22, 2009 at 05:39 AM.
Le Mans Master
Joined: Feb 1999
Posts: 9,916
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
I have Flowmasters Force II exhaust with Long Tubes, no cats with my 396LT1. My youtube vids have it with a XE230/236 and Hot Cam.
http://www.youtube.com/watch?v=g_REuskEebI
http://www.youtube.com/watch?v=g_REuskEebI
Safety Car
Joined: Jan 2004
Posts: 3,759
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