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JBA Cat4ward Shorty Headers

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Old Jun 12, 2002 | 08:02 PM
  #1  
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Default JBA Cat4ward Shorty Headers

Does anyone have experience with these shorty headers? Do they add any performance improvement over standard LS1 exhaust manifolds or not?

Thanks

Carey
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Old Jun 13, 2002 | 12:54 AM
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Default Re: JBA Cat4ward Shorty Headers (careymcmahon)

I am interested as well. JBA is in So Cal maybe I'll visit them. I'll be in Denver mid July, if you get them on let me know, I'd love to visit.
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Old Jun 13, 2002 | 12:35 PM
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Default Re: JBA Cat4ward Shorty Headers (Steve'01)

Hi Steve,

I have a 2001 C5 Coupe which is totally stock. However, I want these headers for another project. I have a 58 Corvette that I'm fitting C4 suspension, C5 brakes, LS1 engine (headers, Haltech TB, Granatelli MAF, Lingenfelter GT2 cam, Z06 valve springs, Z06 intake) and a T56 from a 2000 Camaro)!! It is a long way off being finished at this point though!

Carey
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Old Jun 13, 2002 | 02:56 PM
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Default Re: JBA Cat4ward Shorty Headers (careymcmahon)

My shop has installed them on an 02 Z06. They fit well, but the headpipes do need to be tweak outwards a little.
I don't have dyno testing on this specific set yet, but seat of the pants feel definatley shows some power increase
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Old Jun 13, 2002 | 07:51 PM
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Default Re: JBA Cat4ward Shorty Headers (Lowend)

I plan to install them as well, how long did it take and any install concerns :seeya
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Old Apr 17, 2013 | 11:20 AM
  #6  
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Originally Posted by Steve'01
I am interested as well. JBA is in So Cal maybe I'll visit them. I'll be in Denver mid July, if you get them on let me know, I'd love to visit.
Where in So Cal are they in? I want to go visit them? Thanks!
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Old Apr 17, 2013 | 04:08 PM
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Default JBA Cat4ward Shorty Headers

Hi Guys,

I installed a set of ceramic coated JBA headers on my previous C4 and on my C5 Z06 about 3 years back.
I cannot prove they made any gains in performance, but they were quite easy to install, look great compared to the heavy cast stock headers, are quite light weight and sound great, had no issues with them in three years and still look like new.
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Old Apr 17, 2013 | 04:15 PM
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I have a BBK set of shorties installed. Not saying they are as good as JBA, but I think performance would be similar. I had a before and after dyno with nothing else changed and had a ZERO increase in power. Just thought Id share that.
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Old Apr 17, 2013 | 04:18 PM
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Default

Originally Posted by careymcmahon
Hi Steve,

I have a 2001 C5 Coupe which is totally stock. However, I want these headers for another project. I have a 58 Corvette that I'm fitting C4 suspension, C5 brakes, LS1 engine (headers, Haltech TB, Granatelli MAF, Lingenfelter GT2 cam, Z06 valve springs, Z06 intake) and a T56 from a 2000 Camaro)!! It is a long way off being finished at this point though!

Carey
This is not directly related to the post but ditch the Granatelli MAF and go with a stock MAF. There is a long history of those MAFs causing problems. I would also skip the shorties and see if you can get long tubes.
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Old Apr 17, 2013 | 04:30 PM
  #10  
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Originally Posted by NukeC5
I have a BBK set of shorties installed. Not saying they are as good as JBA, but I think performance would be similar. I had a before and after dyno with nothing else changed and had a ZERO increase in power. Just thought Id share that.
Did it increase in sound? And do you have any problems with your spark plug wires or a/c line?

Thanks!
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Old Apr 17, 2013 | 04:56 PM
  #11  
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Originally Posted by elopez1986
Did it increase in sound? And do you have any problems with your spark plug wires or a/c line?

Thanks!
No problems. I had to have the headers machined flat. But fitment is fine and everything sits as it should. No difference in sound really.. One person said it was deeper, but I dont think so.
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Old Apr 17, 2013 | 05:39 PM
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I have the coated JBA's. I bought them new on eBay real cheap. They fit one and I'm just going to keep them on.

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