4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

X-Pipe without cats. Can I pass emissions?

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Old 06-25-2008, 07:18 PM
  #21  
mvr
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Default RE: X-Pipe without cats. Can I pass emissions?

i passed without cats, then again i knew the guy who was doing the testing from high school. so i dont think he did the "visual" test. i had the code turned off, but my car is way loud and smells of raw 93 at idle. its kinda obvious.
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Old 06-25-2008, 07:53 PM
  #22  
Lowtryx
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Default RE: X-Pipe without cats. Can I pass emissions?

ORIGINAL: mvr

i passed without cats, then again i knew the guy who was doing the testing from high school. so i dont think he did the "visual" test. i had the code turned off, but my car is way loud and smells of raw 93 at idle. its kinda obvious.
That's awesome.. I love that smell

Here in Ontario, I can readily get 94 Octane, but it's not cheap.. Just paid $1.48 per litre.
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Old 06-25-2008, 07:58 PM
  #23  
aode08
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Default RE: X-Pipe without cats. Can I pass emissions?

The loss of backpressure, will effect the powerband of your 4.6, I would get HIGH FLOW cats.
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