 Stock pipes....Carb vs. EFI
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Joined: Jan 2005
Posts: 1,485
Learned Hand
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OP
Learned Hand
Joined: Jan 2005
Posts: 1,485 |
So is there really any differnce between so-called EFI stock pipes and say the stockers from like an '02 America?
"Despite all the amputation, you could dance to a rock 'n roll station..."
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Re: Stock pipes....Carb vs. EFI
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
I believe the EFI versions have cats.
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Re: Stock pipes....Carb vs. EFI
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Joined: Jan 2005
Posts: 1,485
Learned Hand
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OP
Learned Hand
Joined: Jan 2005
Posts: 1,485 |
Thanks. So does that mean they will not work out so well with a carb set up?
"Despite all the amputation, you could dance to a rock 'n roll station..."
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Re: Stock pipes....Carb vs. EFI
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
I have 2010 EFI headers and carbs on my '04. You'll have to plug the bungs for the O2 sensor but they fit up perfectly. I have no clue about my TORs but I suspect they were bought pre EFI by the PO.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: Stock pipes....Carb vs. EFI
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
They should still work OK with carbs.
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Re: Stock pipes....Carb vs. EFI
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Joined: Mar 2005
Posts: 2,419
Oil Expert
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Oil Expert
Joined: Mar 2005
Posts: 2,419 |
They'll still work. Just more restricted gas flow, so your performance may suffer a bit and you will need to re-jet.
Cheers, Richard
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09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
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Re: Stock pipes....Carb vs. EFI
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
To be honest, after replacing my pipes and SS silencers with EFI pipes and long TORs my performance improved dramatically. I only replaced the pipes to obtain chrome to match the TORS as my original pipes were black ceramic coated but there you have it, one real life experience.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: Stock pipes....Carb vs. EFI
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Joined: Jan 2005
Posts: 1,485
Learned Hand
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OP
Learned Hand
Joined: Jan 2005
Posts: 1,485 |
So Ed, you put EFI pipes and silencers on a carb setup?
Whoops just saw your earlier post. Sorry.
Last edited by blackdog; 09/19/2012 11:49 AM.
"Despite all the amputation, you could dance to a rock 'n roll station..."
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Re: Stock pipes....Carb vs. EFI
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Joined: Mar 2005
Posts: 2,419
Oil Expert
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Oil Expert
Joined: Mar 2005
Posts: 2,419 |
Perhaps your previous pipes/setup were too open - not enough back pressure affects performance as much as too much back pressure.
Cheers, Richard
~~~~~~~~~~~~
09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
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Re: Stock pipes....Carb vs. EFI
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
The cats are in the pipes, not the headers. I have not personally looked inside of an EFI cat pipe, so I can't tell you if the cats in any way restrict flow.
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Re: Stock pipes....Carb vs. EFI
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Joined: Mar 2005
Posts: 2,419
Oil Expert
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Oil Expert
Joined: Mar 2005
Posts: 2,419 |
Cats will always restrict flow. Depending on the number of cells per inch determines how much the flow is restricted.
Cheers, Richard
~~~~~~~~~~~~
09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
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Re: Stock pipes....Carb vs. EFI
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Joined: May 2010
Posts: 5,720
Check Pants
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Check Pants
Joined: May 2010
Posts: 5,720 |
Quote:
The cats are in the pipes, not the headers. I have not personally looked inside of an EFI cat pipe, so I can't tell you if the cats in any way restrict flow.
I believe the only diff. with EFI header pipes vs carb headers are the sensor bungs. At least as so, on the set I acquired.
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Re: Stock pipes....Carb vs. EFI
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Joined: Mar 2005
Posts: 2,419
Oil Expert
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Oil Expert
Joined: Mar 2005
Posts: 2,419 |
There were some EFI headers that had cats in them. But only in California and Europe (if my memory serves me well ... Which it doesn't so much these days.) 
Cheers, Richard
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09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
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