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Unread 02-01-2011   #1 (permalink)
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Default 1992 5.0 Mustang-Exhaust recommendations

I have a '92 5.0 LX Convertible and the exhaust sound is way too loud inside the car. I am looking for any recommendations of full systems that include headers and cats. I don't mind a little rumble, as long as it is behind and not underneath me. I don't want to have to change the volume of my radio or conversation with others as I accelerate. Thanks.
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Unread 02-01-2011   #2 (permalink)
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Sorry no help here. I prefer just the opposite
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Unread 02-02-2011   #3 (permalink)
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I am with spdjnky_42 on this one. On my 5.0 I have offroad xpipe and slp loudmouth dumped and wish it was louder. wait until you hear a LS-1 with no cats and slp loudmouth..thats when exhaust is just starting to get loud

What is the current setup?
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Unread 02-02-2011   #4 (permalink)
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once you put some cats on...that will start to bring it down...you could go with a flowmaster 50 or 60 series...that might tone it down enough for ya
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Unread 02-02-2011   #5 (permalink)
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off road h with pypes violaters sound sick
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Unread 02-02-2011   #6 (permalink)
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Your profile doesn't say if you have an automatic or manual.

Automatic... then I would recommend the bbk shortie headers, bbk offroad h-pipe (no cats), and Flowmaster american thunder catback system.
Manual...bbk long tube headers, bbk X pipe no cats, american thunder flowmaster cat back system. get the locking bolts for the long tubes.

These are complete exhaust systems that will sounds great, and gain some horsepower. It won't be loud until you put your foot into the gas.
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Unread 02-02-2011   #7 (permalink)
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I'm running bbk shorties with 2 1/2 bbk x-pipe with cats and magna-flows sounds great going down the road without all the drone inside
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Unread 02-02-2011   #8 (permalink)
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Quote:
Originally Posted by My 5.0 91 LX View Post
I'm running bbk shorties with 2 1/2 bbk x-pipe with cats and magna-flows sounds great going down the road without all the drone inside
I'm running MAC shorties, Flowmaster 40's and have the stock H pipe with all the cats still on it. No sound issues inside except a bit of drone around 2K, but nothing to complain about.
Do you have your tailpipes dumped just after the muffler or are you running complete tailpipes all the way out the back of the car?
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Unread 02-02-2011   #9 (permalink)
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JBA Headers, MagnaFlow X with cats, Borla Mufflers dumped just in front of the rear axle= no gas smell inside the car and no drone at all.
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Unread 02-02-2011   #10 (permalink)
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My notch had shorties, off road h, and flowmaster 40 tips. I cut the tips off and it didnt change how the car sounded just made a deeper rumble inside the car, imo though, the 40s were not loud at all until you got on it. my power steering pump was louder than my exhaust. I have mac dumps on now on my hatch and they are louder plus i think they sound 100 times better. The only thing i can really tell ya is run tips out the back with original 40s on a hpipe and some shorties, it wasnt loud at all inside my car. but im with most the other people that posted, i want my car to make my ears ring lol.

heres a old video of my coupe with the 40s and the tips to tryin give you an idea
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Unread 02-02-2011   #11 (permalink)
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I think in IL you need to have your car smog checked so long tubes might be out of the question.
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Unread 02-02-2011   #12 (permalink)
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It still has the stock set-up. I took a look at it, and the pipe coming out of the second cat on the left side is broken. The car is a '92 with 45K miles and is now running after three years in Northern Illinois outdoor storage. Here is a dumb question, does the aftermarket x-pipes connect to the first cat output or to the stock manifold? I am not sure headers will buy me anything, since the stock manifolds appear to be headers. Don't beat me up on this, I am an airplane and Harley guy, not much of a car guy.

BTW, Automatic and I live four miles outside the mandatory smog-check boundary.

Last edited by L915492; 02-02-2011 at 05:16 PM. Reason: did not finish
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Unread 02-02-2011   #13 (permalink)
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the x and h pipes will connect at the back of the stock(looks like a header) manifold. the stocks have smaller diameter tubes and dont flow as well as the aftermarket performance headers.

PS:i reinstalled my tips with no cat xpipe and single chamber flows to get rid of the drone.now theres no drone and when you open it up you still get every ones attention. gotta love the sound of a screamin five liter
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Unread 02-02-2011   #14 (permalink)
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Quote:
Originally Posted by L915492 View Post
It still has the stock set-up. I took a look at it, and the pipe coming out of the second cat on the left side is broken. The car is a '92 with 45K miles and is now running after three years in Northern Illinois outdoor storage. Here is a dumb question, does the aftermarket x-pipes connect to the first cat output or to the stock manifold? I am not sure headers will buy me anything, since the stock manifolds appear to be headers. Don't beat me up on this, I am an airplane and Harley guy, not much of a car guy.

BTW, Automatic and I live four miles outside the mandatory smog-check boundary.
Your stock exhaust is Shorty Headers, then H-pipe with cats, then mufflers and pipes.
"Does the aftermarket x-pipes connect to the first cat output or to the stock manifold"

To answer your question the aftermarket X-pipe connects to your stock headers. Your factory H-pipe is all one piece includes the cats. The aftermarket X pipe is also 1 peice just like the H-pipe but it is shaped as an X not an H. For better air flow. Hope that makes sense.
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Unread 02-02-2011   #15 (permalink)
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You guys have all been great about this and I have but two stupid questions left. First, are there in fact, four cats on the factory system, or would what looks to be a forward cat simply be a heat shield where the pipe bends? And secondly, what about o2 sensor(s)? Thanks for your input.
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