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View Poll Results: Crawford or Kinetix HFC's?
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Feedback on HFC's...What you HAVE?

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Old 01-31-2007, 12:02 PM
  #21  
Andy@Performance
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You wont see or notice that much of a gain with the high flow cats alone, getting a cat back and headers will optimize the potential HP gains from the cats. We have the updated Crawfords in stock.

http://www.mynismo.com/products/?id=2726
Old 01-31-2007, 07:03 PM
  #22  
DanielW
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yes!!! someone got it
Old 02-01-2007, 05:40 PM
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pln2311
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Kinetix. No problems. Sound Great.
Old 02-02-2007, 09:23 AM
  #24  
GolfinZ
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Ultimate Racing Ftw!
Old 02-02-2007, 10:24 AM
  #25  
rkd350z
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Random Technology HFC around 600 new got it 170 used.

used it for almost a year and running perfect!!
Old 02-02-2007, 10:27 AM
  #26  
Jay'Z
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I just got the UR HFC's from Z1(Adam) today.. I will post review later.... Should have them on tonight!!

Side note: add more name brands to your pole.. Like Ultimate Racing, Nismo, etc, etc.........
Old 02-02-2007, 01:02 PM
  #27  
DROPPEDIT2WCE
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Originally Posted by davidv
Thanks for asking but I posted a Kinetix review complete with photos. No point in another high-flow catalytic converter thread.

use search
Old 02-02-2007, 04:13 PM
  #28  
Jay'Z
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I installed my UR HFC's and they are a great bang for the buck!! I have been losing boost for a while.. Today I got it back.. It is true, the OEM Cats kill your exhaust from realizing any potential..... I gotta get this dyno tuned again!!! I Wanna see the gains..... SGP here I come.....
Old 03-02-2007, 10:35 AM
  #29  
davidv
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What did you order?
Old 03-02-2007, 04:58 PM
  #30  
Ztune
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+1 Crawfords
Old 03-02-2007, 05:26 PM
  #31  
Mike@Altered
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Originally Posted by sunmind
Like the look of these HFC's sold by Altered Atmosphere - AAM Spec 2.5 inch MaxFlow Metallic Cats.

Have searched everywhere but have been unable to find any reviews posted. Would appreciate any information (especially any fitment or CEL issues) from anyone that has tried these.
Hello,

The AAM Spec 2.5" MaxFlow Metallic Cats are full stainless and keep the CEL happy. They're also made out of 16-gauge T304 stainless so they do not have the cracking issues people have experinced with other cats/test pipes. We offer a lifetime warranty to the original purchaser & vehicle.

Hope this heps,
Old 03-09-2007, 09:34 PM
  #32  
Jes-Z
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Originally Posted by Mike@Altered
Hello,

The AAM Spec 2.5" MaxFlow Metallic Cats are full stainless and keep the CEL happy. They're also made out of 16-gauge T304 stainless so they do not have the cracking issues people have experinced with other cats/test pipes. We offer a lifetime warranty to the original purchaser & vehicle.

Hope this heps,
Will they fit with a nismo exhaust? I'm guessing the piping diameters are different between the Nismo Cat back and the Cats. Maybe I'm wrong. I'm debating HFC's for my next mod.
Old 03-13-2007, 06:23 PM
  #33  
DanielW
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Ultimate racing high flow cats are awesome, you can really feel the gains when you get a tune. I'll be adding crawford headers next week to make a complete true dual exhaust system. I'll let everyone know how it goes. AAM told me the target AF ratio that they set should be able to compensate for the headers when I add them, without the need for another reflash
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