American Thunder Flowmaster. Will it get louder?

[soctty7676]

Hey all, just got done installing the American Thunder cat back on my 98 GT conv w/stock mid-pipe. First off, the fit kindof sucks.....it could be worse, but I had to elongate the mounting holes. Not easy using a hand drill, that's for sure. Other than that, the right side went pretty smooth, the left side muffler is pretty tight on that hanger, had a hell of a time trying to get everything lined up on the left. Just doesn't seem to fit quite right, but it's together. I just hope it doesn't push the keeper off the hanger because there is quite a bit of pressure on it.

The sound is good, kindof thought it would be louder though, I am definetly glad I didn't go with the Force II, I think it would have sounded close to the stock mufflers. Will this get any louder after burning out awhile? I am planning on buying a UPR cat midpipe in the future, but not anytime soon.

Scott

 

[stangGT97]

chambered mufflers do have a break in period so they should get a little bit louder over time

 

[SRT Handz]

Give it a couple weeks to break in. Once thats done it will sound great. Get the UPR O/R X and it will sound AWSOME!!!!

 

[95CobraStang]

IMO, they don't get too much louder... you'll love the sound, but you'll be always wanting more volume...

 

[blackink00]

 

[StangGT96]

Hey SRT Handz do you have a sound clip of your exhaust? I have a o/r upr x pipe and i'm thinking what mufflers i should get with my mid pipe.

 

[hotrodnut]

chambered mufflers do have a break in period so they should get a little bit louder over time

I'm not doubting what you say but just need educated on how a muffler without and kind of packing to burn out will get louder after they break in? What is it that breaks in and allows for a noise change?

 

[Mossberg]

Mine definately got louder. I don't know why, but they did get louder. The bad smell went away also.

 

[mity2]

chambered mufflers do have a break in period so they should get a little bit louder over time

how is that? whats in Chmbered muffler that needs to be broken in?

 

[twogts4us]

If you want louder, dont buy a catted midpipe...it'll deepen the tone, but, like in my case, it just aint much louder than it was with the OEM midpipe...maybe a bit, but the tone is what really changed. It's also louder when jumped on and revved up, but its more or less pretty quiet.

 

[VividDreams]

IMO, they don't get too much louder... you'll love the sound, but you'll be always wanting more volume...

thats where im at, mine came with this when i bought it and, IMO, thats how it should come stock....i will be going with a BBK L/T and BBK O/R H set up as soon as my funds allow

 

[Try Me]

Hey all, just got done installing the American Thunder cat back on my 98 GT conv w/stock mid-pipe. First off, the fit kindof sucks.....it could be worse, but I had to elongate the mounting holes. Not easy using a hand drill, that's for sure. Other than that, the right side went pretty smooth, the left side muffler is pretty tight on that hanger, had a hell of a time trying to get everything lined up on the left. Just doesn't seem to fit quite right, but it's together. I just hope it doesn't push the keeper off the hanger because there is quite a bit of pressure on it.

The sound is good, kindof thought it would be louder though, I am definetly glad I didn't go with the Force II, I think it would have sounded close to the stock mufflers. Will this get any louder after burning out awhile? I am planning on buying a UPR cat midpipe in the future, but not anytime soon.

Scott

80% of sound will be had from the mid pipe.

 

[edbo]

I have flows on my car and it did take a couple of weeks before they kind of kicked in. They're still a little tame when you're tame on the throttle, but they do roar when you kick it in. Works perfect for me in a 'vert.

 

[fellamansteve]

I don't know about a break-in period, I've had mine on for over a year and it never got any louder than the day I put it on.

That sucks that it didn't fit on very well. Mine bolted up with no problems when I put it on the stock midpipe and fine again when I put on my prochamber. The only problem I have is it started rubbing against my rear axle going over rough bumps after a while...not sure if that's a problem with the exhaust kit or if it's because my rear end sagged a lot this summer.

 

[SRT Handz]

Hey SRT Handz do you have a sound clip of your exhaust? I have a o/r upr x pipe and i'm thinking what mufflers i should get with my mid pipe.

No i dont, sorry. But i swear you will love the sound. my 2 Gt friends did exaust and one did Bassani X with Magnaflows and the other did BBK H and Flows. They want mine now and mine sounds way better than both of theres

 

[fellamansteve]

I think there's a website that has a rather large archive of sound clips for mustang exhaust pieces, but I don't remember what it is offhand.

 

[Mossberg]

mustangexhaust.com

 

[Roger_4.6_96]

Hey all, just got done installing the American Thunder cat back on my 98 GT conv w/stock mid-pipe. First off, the fit kindof sucks.....it could be worse, but I had to elongate the mounting holes. Not easy using a hand drill, that's for sure. Other than that, the right side went pretty smooth, the left side muffler is pretty tight on that hanger, had a hell of a time trying to get everything lined up on the left. Just doesn't seem to fit quite right, but it's together. I just hope it doesn't push the keeper off the hanger because there is quite a bit of pressure on it.

The sound is good, kindof thought it would be louder though, I am definetly glad I didn't go with the Force II, I think it would have sounded close to the stock mufflers. Will this get any louder after burning out awhile? I am planning on buying a UPR cat midpipe in the future, but not anytime soon.

Scott

Yea the fit is horrible. Watch out the tailpipes rub on your brake lines . Want it louder you need off road mid pipe.

 

[soctty7676]

Yea the fit is horrible. Watch out the tailpipes rub on your brake lines . Want it louder you need off road mid pipe.

Yeah, when I was installing them, I had to make sure I tightned the clamps while holding the exhaust away from the brake lines. I checked it today and it clears the brake lines ok.

The off-road pipe will be coming soon. I live in a county with no state inspections woohoo!

 

[dsanchez03gt]

If you want it to be louder then get a h-pipe. My friend and I both have the american thunder exhaust. I have a prochamber which sounds good, but his offroad mac h pipe sounds so sick.