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Should I get Hi flow Cats or keep stock cats ?????

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Old 12-04-2007, 02:23 PM
  #11  
rdiaz89
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

ORIGINAL: howarmat

You can easily switch out the o/r pipe in an hour on jackstands......run the o/r pipe for 364 days a year and the 365th put the stocker back on

trust me i would love to do this! but if i do get caught what excuse will i use?
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Old 12-04-2007, 02:25 PM
  #12  
Black05StangGT
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

Flowmonster has a high flow cat and its pretty cheap...check for it on ebay...I haven't used them personally, price on ebay is pretty reasonable for them I think you can get two for around $100 shipped...
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Old 12-04-2007, 06:17 PM
  #13  
nitetimebolher
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

Is that the cheapest best place to get high flow cats??? I need to order some this week.
Please let me know. Anyone have used ones they're selling?

What size Hi flow cat should I get, I need one that has the holes for the 02 sensor.
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Old 12-04-2007, 06:45 PM
  #14  
Mustang3GT07
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

Now say if you get longtubes and a o/r pipe will you make more hp with that sutup VS. longtubes and a high-flow catted midpipe??? If so how much is lost?
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Old 12-04-2007, 06:59 PM
  #15  
2007CalSpec
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Default RE: Should I get Hi flow Cats or keep stock cats ?????


ORIGINAL: nitetimebolher

Is that the cheapest best place to get high flow cats??? I need to order some this week.
Please let me know. Anyone have used ones they're selling?

What size Hi flow cat should I get, I need one that has the holes for the 02 sensor.
I plan to get some high flow cats in the future and have done a lot of searching but I still haven't seen any with 02 sensor holes for 05+ Mustangs. Any muffler shop can weld in 02 sensor bungs for you.
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Old 12-04-2007, 07:05 PM
  #16  
nitetimebolher
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

In that case, where's the best place I can get some High Flow Cats for CHEAP? And what size do I need?

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Old 12-04-2007, 07:11 PM
  #17  
modaddict
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

I actually dyno tested my car back when I had the cats and put the high flows on and saw absolutely 0 gain. Didn't notice any other 'feel' either. Quite frankly, it made no difference at all having the high flow over the stockers on my particular car.

I don't have cats at all now.
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Old 12-04-2007, 07:35 PM
  #18  
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

First. If the smell is like rotten eggs, then it's most likely your cats.

Second, don't cut off the cats:

A. It confuses thecomputer.

B. Cops love pulling over guys with illegal mods.

C. Its really bad for the environment.

D. There will probably still be a smell. Cats actually burn-off the offending gases.

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Old 12-04-2007, 07:58 PM
  #19  
PiggySmallz
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

ORIGINAL: 4.6er

First. If the smell is like rotten eggs, then it's most likely your cats.

Second, don't cut off the cats:

A. It confuses thecomputer.

B. Cops love pulling over guys with illegal mods.

C. Its really bad for the environment.

D. There will probably still be a smell. Cats actually burn-off the offending gases.

an off road pipe doesn't smell like raw eggs (sulfur), it smells like raw fuel
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Old 12-04-2007, 08:09 PM
  #20  
WALLACE
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Default RE: Should I get Hi flow Cats or keep stock cats ?????

First. If the smell is like rotten eggs, then it's most likely your cats.
he posted because he dose'nt have cats. looking into hi-flowws
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