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Muffler Or Resonator?

Roaddragrace02

Member
U.S. Marine Veteran
Messages
5
Likes
2
Location
Nampa, ID
#1
Any buddy running 3 inch turbo back no cat no muffler or resonator on there fiesta st? I was going to do this and get a tune later to turn off my cell really ain't worried about it being on for this time being just don't wanna hurt it. And also if you do have this set up can I get a sound clip of it please thanks guys
 


XR650R

2000 Post Club
Messages
2,750
Likes
3,205
Location
Eerie
#3
Any buddy running 3 inch turbo back no cat no muffler or resonator on there fiesta st? I was going to do this and get a tune later to turn off my cell really ain't worried about it being on for this time being just don't wanna hurt it. And also if you do have this set up can I get a sound clip of it please thanks guys
If you're lucky, the car has the stock exhaust.
It is not restrictive at all, and it's quiet. Don't mess with it.
 


Messages
1,803
Likes
2,308
Location
CHAPEL HILL, NC, USA
#4
Any buddy running 3 inch turbo back no cat no muffler or resonator on there fiesta st? I was going to do this and get a tune later to turn off my cell really ain't worried about it being on for this time being just don't wanna hurt it. And also if you do have this set up can I get a sound clip of it please thanks guys
You might actually lose horsepower, the system is designed for a certain amount of back pressure. In general, there's no benefit at all to going catless, and if you do you have to deal with the smell. Also, there's a reason that cars have catalytic converters, the level of pollution is a huge amount lower than when they didn't have them.
Welcome to the Forum, keep asking questions, there's a lot of great knowledge and information on here.
 


Last edited:
Messages
127
Likes
60
Location
Houston, TX
#6
Like others have said that will be brutal. Ive run stock diameter with just a muffler delete and it was too droney on the freeway it hurt my ears. I now run stock pipe diameter, stock cat, stock resonator, no muffler with a dump just before the axle and it's loud but no drone. If I accelerate under 2k rpm it's almost inaudible. Once you get into boost it's so good because being dumped under the car I can hear it as if I were outside. I hear all the pops n bangs on a stock tune lol. I must say though it is loud on the freeway as you go over 2k rpm if you're gonna wanna cruise at any reasonable speed 70mph+
 


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Grsemky

Member
U.S. Navy Veteran
Messages
31
Likes
18
Location
Arizona
#7
Like others have said that will be brutal. Ive run stock diameter with just a muffler delete and it was too droney on the freeway it hurt my ears. I now run stock pipe diameter, stock cat, stock resonator, no muffler with a dump just before the axle and it's loud but no drone. If I accelerate under 2k rpm it's almost inaudible. Once you get into boost it's so good because being dumped under the car I can hear it as if I were outside. I hear all the pops n bangs on a stock tune lol. I must say though it is loud on the freeway as you go over 2k rpm if you're gonna wanna cruise at any reasonable speed 70mph+
My plan is a resonator delete, but replaced with an electric dump at 2.5". That way I can get that obnoxious tractor noise when I want but not drive myself nuts during normal drives...
 




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