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Exhaust problem for 2014

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Old 05-01-2014, 01:46 PM   #1
caneboy
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Default Exhaust problem for 2014

My wife just got a new 2014 Convertible GT. I wanted to make it a little louder and add a few hp. I bought an off-road H-pipe and a set of Flowmaster American Thunder mufflers. The car is WAY to loud now. I called Lethal Preformace and asked if I could exchange the mufflers for something less aggressive and they said I was stuck with them. So my question is should I put the stock H-pipe back on and keep the Flowmasters or take off the Flowmasters and put the stock mufflers back on?
The 2014 is like twice as loud as my Roush and I have an off-road H-pipe on mine with Borla's. Its just way too loud even for me and I like loud. Sometimes you can feel the exhaust.....it shakes the car.
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Old 05-01-2014, 01:59 PM   #2
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Quote:
Originally Posted by caneboy View Post
Sometimes you can feel the exhaust.....it shakes the car.
Sounds perfectly normal

;-)
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Old 05-01-2014, 01:59 PM   #3
dcarlinf1
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Keep the off road H pipe and put the stock mufflers back on. At least you still have the performance benefits. My 2 cents. Then maybe go with the GT500 axle backs.
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Old 05-01-2014, 02:26 PM   #4
rjstubbl
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I went with the GT500 axlebacks and it sounds great.
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Old 05-01-2014, 02:49 PM   #5
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Originally Posted by Cruzinaround View Post
Sounds perfectly normal

;-)
HAHA. +1.

I agree with DCarlin. Go back to stock axle back, then figure out which less aggressive axleback you want to use. The flowmaster outlaw axlebacks weren't loud enough... so I added the off-road x-pipe. Fell in love with my car all over again
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Old 05-01-2014, 02:57 PM   #6
xkape
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Have a shop install a resonator?
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Old 05-01-2014, 04:05 PM   #7
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Why don't you just get high flow cats and get them installed? You'll get the majority of the small performance boost still and the sound should be a good bit quieter. Otherwise, I'd agree, run the mid pipe with stock mufflers. I'm running an O/R Prochamber with stock mufflers on my car and it sounds great. I will change them out eventually, but until then I'm quite satisfied with the sound. It gets loud when I get on it, but it can stay quiet if I'm gentle (in other words, it's never quiet).
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Old 05-01-2014, 05:06 PM   #8
Weather Man
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Take the borla off yours and give to her. Put the louder on yours.
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Old 05-01-2014, 09:35 PM   #9
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If it was my wife's car and I made it too loud, she'ld be some pi55ed ...... and that's a state I would just as soon she not go to .....


Besides, with a stock GT there's no HP in aftermarket mufflers .... just noise. Ford saw to that.
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Old 05-01-2014, 09:57 PM   #10
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Quote:
Originally Posted by dcarlinf1 View Post
Keep the off road H pipe and put the stock mufflers back on. At least you still have the performance benefits. My 2 cents. Then maybe go with the GT500 axle backs.
Would probably agree with this. The off road X pipes give the best bump in power (mostly when tuned though) than other exhaust mods, and actually increases the sound of the exhaust to "normal" levels. These stock exhausts are ridiculously quiet!
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Old 05-01-2014, 11:34 PM   #11
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I got a set of Kooks mufflers, and a pypes X pipe at the same time, i installed the mufflers alone, and it was a noticeable diff in loudness. not over loud, but now it sounded like a mustang. the car i bought.

then i added the x pipe. (O/R) and damn... loud loud loud. the mufflers made the MOST NOTICEABLE DIFFERENCE due to the way they're designed to make the exhaust note sound. when the car idles, its a low rumble that intimidates mechanics. WOT, i hear more of the engine than i do the exhaust. its just between 2000-4500 RPM where the noise comes from.

I would first put the stock mufflers back on. its going to be a bit louder than stock, but it you dont like the way it sounds, put back on stock H pipe and add mufflers. if you go to american muscle.com, they have sound clips for most of the exhaust they sell.

they didnt have the Kooks, but if you ask anyone who's been around mustangs long enough, they will tell you Kooks makes amazing parts. and THATS why i chose kooks.

try a few different things, if all else fails, get a new wife.
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Old 05-02-2014, 01:52 PM   #12
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I already put a CAI on and 93 race tune so it is tuned for the O/R H-pipe. I think I will just put the stock mufflers back on and see how it sounds. My wife isnt pissed. She wanted to louder than stock but this set up is even too loud for me lol. I think i will just try and sell the Flowmasters. Thanks everyone for the input.
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Old 05-02-2014, 04:52 PM   #13
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Quote:
Originally Posted by xkape View Post
Have a shop install a resonator?
It already has resonators

Quote:
Originally Posted by Weather Man View Post
Take the borla off yours and give to her. Put the louder on yours.
won't fit. different pipes, lengths angles and sizes.

---------------------------

For what it's worth, a catless vert really doesn't work unless you have like stock GT500 axlebacks on it, keep the stock resonators and then go catless.

I have no resonators, Borla S-Types, and stock midpipe/cats, and I think it's plenty loud, as in perfect loudness for me, and wouldn't want it any louder.
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Old 05-02-2014, 05:40 PM   #14
caneboy
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Maybe I will give the GT500 axlebacks a try
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Hurst short shifter / Borla axle backs
25% tinted windows
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Tokico D-Spec shocks
BF Goodrich KDW 275/40/18
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Old 05-02-2014, 05:40 PM
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