Exhaust Straigh Exhaust

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jose27505

Member

Jan 17, 2014

7

3

14

Feb 10, 2014

#1

• Feb 10, 2014

• #1

my friend has a 99 cobra and he wants to go catless and straight no exaust. he knows it ilegal obviously but he wants to know if it will mess anything up besides the environment running it with no tune? I have a 97 but would never go catless since i live in the city and have to pass emissions.

 

flstang65

10 Year Member

Dec 6, 2007

1,484

135

94

SE Georgia

Feb 12, 2014

#2

• Feb 12, 2014

• #2

x or h pipe with no cats, decent mufflers and dump them right after the muffler if that's what he is looking for

 

bhuff30

Founding Member

Dec 11, 2001

6,037

35

129

Olathe KS

Feb 13, 2014

#3

• Feb 13, 2014

• #3

Yup, at least run mufflers. Without mufflers, the exhaust would be deafening, literally (ie hearing damage). It would no doubt get attention from the local authorities for noise violations if nothing else. Besides, not as if it costs more than a couple horsepower running without mufflers. And your friend will feel stupid when the car so loud you can barely stand to drive it, yet many modern sedans and sports cars would easily beat you in a drag race while being smooth and quiet.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,216

17,899

224

Massachusetts

Feb 26, 2014

#4

• Feb 26, 2014

• #4

bhuff30 said:

And your friend will feel stupid when the car so loud you can barely stand to drive it, yet many modern sedans and sports cars would easily beat you in a drag race while being smooth and quiet.

Click to expand...

Not to mention if he was to rip the cats and mufflers off the car he'd probably shift the torque curve up higher in the powerband and make the car an absolute dog to drive in the street.

SO yeah, the car will sound loud and nasty, but it will be slower as the HP you do gain will be in the higher RPM band. So unless he drives around at WOT, it's not as usable as low-end torque

I've watched countless friends when i was a teen do this...and then wonder why they lost time in the 1/4 mile.

 

D

Deleted member 38176

Feb 26, 2014

#5

• Feb 26, 2014

• #5

Catless here too

The car will sound like ass without mufflers

 

restomod66

Active Member

Apr 15, 2003

136

20

29

San Jose, CA

Apr 2, 2014

#6

• Apr 2, 2014

• #6

That will result in a loss of too much back pressure and you'll lose a lot of good street able power. Not to mention it will sound like flat out garbage. You'll be making hellacious noise while going next to nowhere to back it up. lol