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Would 3 inch Exhaust Hurt my car?

  • Thread starter Thread starter DoHcHoLlIdAy01
  • Start date Start date Jun 15, 2005

DoHcHoLlIdAy01

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May 28, 2005
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Los Angeles, CA
Jun 15, 2005
#1
  • Jun 15, 2005
  • #1
I was thinking of putting the Dynomax 3 inch cat-back on my 01 Cobra. Would I lose too much backpressure and lose power? Should I go with one of the other 2 1/2 inch systems?
 

missouri_guy197

New Member
Aug 31, 2002
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St. Louis, MO
Jun 15, 2005
#2
  • Jun 15, 2005
  • #2
I'd keep 2 1/2" if you aren't blown...
 

DoHcHoLlIdAy01

New Member
May 28, 2005
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Los Angeles, CA
Jun 15, 2005
#3
  • Jun 15, 2005
  • #3
missouri_guy197 said:
I'd keep 2 1/2" if you aren't blown...
Click to expand...

Any reason why? Or just because.
 
C

CobraG

Member
May 24, 2005
59
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6
Jun 15, 2005
#4
  • Jun 15, 2005
  • #4
DoHcHoLlIdAy01 said:
Any reason why? Or just because.
Click to expand...

Could be a back pressure issue, with the 3" you may loose some. Supercharged probably no problem.
But hopefully someone with more 4V knowledge will chime in
 

Dr. Wu 2000

New Member
Feb 16, 2004
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Eastern, Pa.
Jun 15, 2005
#5
  • Jun 15, 2005
  • #5
On a N/A motor I think you need that back pressure for your low end grunt. That's why you see some lose some trq when they swap out to a off road pipe. I know I did when I had my 2000 GT, and that was a H-pipe w/cats. You will pick it back up on the top end though, just matters where you want it. I would stick with the the 2 1/2 set-up. Now get blown and that's another story.
 
C

CobraG

Member
May 24, 2005
59
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6
Jun 15, 2005
#6
  • Jun 15, 2005
  • #6
Dr. Wu 2000 said:
On a N/A motor I think you need that back pressure for your low end grunt. That's why you see some lose some trq when they swap out to a off road pipe. I know I did when I had my 2000 GT, and that was a H-pipe w/cats. You will pick it back up on the top end though, just matters where you want it. I would stick with the the 2 1/2 set-up. Now get blown and that's another story.
Click to expand...

What's up good doctor How have you been? Do you think I'm loosing a little low end with the straight pipes?
One of these days I'll get up to Denver and pickup my Bassani X, I can't wait.
 

DoHcHoLlIdAy01

New Member
May 28, 2005
46
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0
Los Angeles, CA
Jun 15, 2005
#7
  • Jun 15, 2005
  • #7
Dr. Wu 2000 said:
Now get blown and that's another story.
Click to expand...

I get blown all the time. So I guess I should go with the 3 inch. J/K. Its just that the 2 1/2 inch kits are much more expensive (Bassani, Magnaflow). Well I guess they are worth the extra pennies.
 

Dr. Wu 2000

New Member
Feb 16, 2004
554
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Eastern, Pa.
Jun 16, 2005
#8
  • Jun 16, 2005
  • #8
CobraG said:
What's up good doctor How have you been? Do you think I'm loosing a little low end with the straight pipes?
One of these days I'll get up to Denver and pickup my Bassani X, I can't wait.
Click to expand...
What's happenin' brother. You are more than likely losing some low end but the sound is probably pretty sweet. I believe you will feel a difference once that bassani x is installed.
 

Dr. Wu 2000

New Member
Feb 16, 2004
554
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0
Eastern, Pa.
Jun 16, 2005
#9
  • Jun 16, 2005
  • #9
DoHcHoLlIdAy01 said:
I get blown all the time. So I guess I should go with the 3 inch. J/K. Its just that the 2 1/2 inch kits are much more expensive (Bassani, Magnaflow). Well I guess they are worth the extra pennies.
Click to expand...
Yup, always comes down to $. I think a nice catback is a good mod, just for the music to the ears, plus pick up a little power too.
 
C

CobraG

Member
May 24, 2005
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6
Jun 16, 2005
#10
  • Jun 16, 2005
  • #10
Dr. Wu 2000 said:
What's happenin' brother. You are more than likely losing some low end but the sound is probably pretty sweet. I believe you will feel a difference once that bassani x is installed.
Click to expand...

I do like the sound, sounds like a NASCAR. Defiantly turns heads, even people with their windows up look when I go by
But on the highway, it gets a little annoying, puts the kids to sleep though.
I can't wait to get my Bassani X and have it put on, that's going to be nice. I'm wondering if that'll dip my powerband down any. I know a catted Bassani X on my 00 GT dipped the powerband down some, that car was quick after I put that on.

Hey, I have some MagnaFlow mufflers laying in the garage, can I put those on the Cobra? I had them on my 00 GT.
 
M

midlifecrisis99cobra

Founding Member
Jun 2, 2000
420
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16
Plano,Texas,USA
Jun 16, 2005
#11
  • Jun 16, 2005
  • #11
I've got a Bassanni X and Dynomax 3" on mine. I think it did hurt me down low. From everything I've read the NA motors respond better to the 2 1/2" systems as they are very sensitive to backpressure. Sounds great, but I'll be switching to a Magnaflow 2 1/2" before too long.
 
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