Remove mufflers instead of cats
08-18-2006, 09:35 PM
#1
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Remove mufflers instead of cats
The lady that drives my kid to school showed up witha borrowed GT. It is a 96 ( I think) It sounded nice so I peeked underneath ...There are 4 cats but the mufflers have been removed !!!!
I guess someone got smart and cut down some of the back prssure without needing to use mil eliminators etc
what do you guys think?
I guess someone got smart and cut down some of the back prssure without needing to use mil eliminators etc
what do you guys think?
08-19-2006, 12:02 AM
#4
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RE: Remove mufflers instead of cats
Yes, it sounded good . My 98 has a flowmaster's cat back system and all the cats. This car sounded the same to me.
The point is that the car is all smog legal and gets none of those annoying dash warning - unless the lack of muflers change something in how the cats get scavenged.
I wonder why I had not heard of this before ( ?)
Wish I knew what makes better power no muffler or no cats
The point is that the car is all smog legal and gets none of those annoying dash warning - unless the lack of muflers change something in how the cats get scavenged.
I wonder why I had not heard of this before ( ?)
Wish I knew what makes better power no muffler or no cats
08-19-2006, 12:39 AM
#6
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RE: Remove mufflers instead of cats
My old 97 GT had the same setup. The guy who had it before me cut the mufflers off. That car sounded halfway decent, but it was more of a truck sound. I didnt ever change the exhaust on that car mainly because I hadnt really heard what good mufflers sounded like. The 03 GT I have now didnt have mufflers either when I bought it. I didnt like the sound at all. For some reason, the 99-04s just sound too much like a big pickup truck. Too ballsy and no "mustang sound" to it. Also the car made a harsh cracking sound when you let off the gas. I bought the flowmaster catback and the sound improved 100%. It was really smooth an deep sounding. Definately quieter than when the mufflers were cut off.
Definately dont cut the mufflers off if you can help it. You can bolt up an aftermarket midpipe to your stock exhaust. That would sound better and make more power. UPR sells an offroad pipe for like 125$
Definately dont cut the mufflers off if you can help it. You can bolt up an aftermarket midpipe to your stock exhaust. That would sound better and make more power. UPR sells an offroad pipe for like 125$
08-19-2006, 12:53 AM
#7
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RE: Remove mufflers instead of cats
ORIGINAL: Frostbitten
My old 97 GT had the same setup. The guy who had it before me cut the mufflers off. That car sounded halfway decent, but it was more of a truck sound. I didnt ever change the exhaust on that car mainly because I hadnt really heard what good mufflers sounded like. The 03 GT I have now didnt have mufflers either when I bought it. I didnt like the sound at all. For some reason, the 99-04s just sound too much like a big pickup truck. Too ballsy and no "mustang sound" to it. Also the car made a harsh cracking sound when you let off the gas. I bought the flowmaster catback and the sound improved 100%. It was really smooth an deep sounding. Definately quieter than when the mufflers were cut off.
Definately dont cut the mufflers off if you can help it. You can bolt up an aftermarket midpipe to your stock exhaust. That would sound better and make more power. UPR sells an offroad pipe for like 125$
My old 97 GT had the same setup. The guy who had it before me cut the mufflers off. That car sounded halfway decent, but it was more of a truck sound. I didnt ever change the exhaust on that car mainly because I hadnt really heard what good mufflers sounded like. The 03 GT I have now didnt have mufflers either when I bought it. I didnt like the sound at all. For some reason, the 99-04s just sound too much like a big pickup truck. Too ballsy and no "mustang sound" to it. Also the car made a harsh cracking sound when you let off the gas. I bought the flowmaster catback and the sound improved 100%. It was really smooth an deep sounding. Definately quieter than when the mufflers were cut off.
Definately dont cut the mufflers off if you can help it. You can bolt up an aftermarket midpipe to your stock exhaust. That would sound better and make more power. UPR sells an offroad pipe for like 125$
don't go UPR, they suck donkey *********. Get a mac one for like 160
08-19-2006, 01:05 AM
#8
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RE: Remove mufflers instead of cats
ORIGINAL: monkeydude3
don't go UPR, they suck donkey *********. Get a mac one for like 160
ORIGINAL: Frostbitten
My old 97 GT had the same setup. The guy who had it before me cut the mufflers off. That car sounded halfway decent, but it was more of a truck sound. I didnt ever change the exhaust on that car mainly because I hadnt really heard what good mufflers sounded like. The 03 GT I have now didnt have mufflers either when I bought it. I didnt like the sound at all. For some reason, the 99-04s just sound too much like a big pickup truck. Too ballsy and no "mustang sound" to it. Also the car made a harsh cracking sound when you let off the gas. I bought the flowmaster catback and the sound improved 100%. It was really smooth an deep sounding. Definately quieter than when the mufflers were cut off.
Definately dont cut the mufflers off if you can help it. You can bolt up an aftermarket midpipe to your stock exhaust. That would sound better and make more power. UPR sells an offroad pipe for like 125$
My old 97 GT had the same setup. The guy who had it before me cut the mufflers off. That car sounded halfway decent, but it was more of a truck sound. I didnt ever change the exhaust on that car mainly because I hadnt really heard what good mufflers sounded like. The 03 GT I have now didnt have mufflers either when I bought it. I didnt like the sound at all. For some reason, the 99-04s just sound too much like a big pickup truck. Too ballsy and no "mustang sound" to it. Also the car made a harsh cracking sound when you let off the gas. I bought the flowmaster catback and the sound improved 100%. It was really smooth an deep sounding. Definately quieter than when the mufflers were cut off.
Definately dont cut the mufflers off if you can help it. You can bolt up an aftermarket midpipe to your stock exhaust. That would sound better and make more power. UPR sells an offroad pipe for like 125$
don't go UPR, they suck donkey *********. Get a mac one for like 160
Theyre great for 125$. You pretty much get what you pay for with exhaust. But MAC is in the same league as UPR. I bought a MAC cold air intake.... it screwed up my a/f ratio and never fit right.....traded that monkey quick!
08-19-2006, 01:37 AM
#9
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RE: Remove mufflers instead of cats
dude, seriously, cutting off the mufflers and leaving the 4 cats sounds freakin awesome. But, what you need to do is add 3 inch chrome tips to the back and you will get that muscle car rumble. My brother spent all the cash on flowmasters, H pipe, etc, but everybody agrees that mine sounds much more meaner. It doesnt do much for HP, but sounds much better than the raspy exhausts out there. Hell, just give it a shot. I did mine, its very simple. If you dont like it, then go with exhaust... I really want to go with a whole new exhaust system, but dont want to lose my sound. To each there own i guess....
08-19-2006, 02:03 AM
#10
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RE: Remove mufflers instead of cats
Thank you all for the great ideas and information.
Hot rod has a good point. The stock cats are not really engineered to be free flowing. Good muffler design can create scavenging at a pre determined RPM.
I guess the bottom line is what gives the least back pressure and the most performance.
The fact that keeping the cats saves me the cost of mil eliminators is just one of the things to consider.
Just a couple of points/questions - I am not looking for better or more sound. Funny but I can't really hear the deep throaty sound inside the car. It sucks people enjoy the sound of my car but I don't .....
Do I need a Flowmaster H pipe or will any pipe fit ?
Anybody use these cheap mil eliminators that come without connectors
Thanks guys
Hot rod has a good point. The stock cats are not really engineered to be free flowing. Good muffler design can create scavenging at a pre determined RPM.
I guess the bottom line is what gives the least back pressure and the most performance.
The fact that keeping the cats saves me the cost of mil eliminators is just one of the things to consider.
Just a couple of points/questions - I am not looking for better or more sound. Funny but I can't really hear the deep throaty sound inside the car. It sucks people enjoy the sound of my car but I don't .....
Do I need a Flowmaster H pipe or will any pipe fit ?
Anybody use these cheap mil eliminators that come without connectors
Thanks guys
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