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» Northern California Ford Owners     » Automotive   » Tech Talk   » high flow cats

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Author Topic: high flow cats
lawmans_GT
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Anyone with flow cats ever pass smog with them. I was considering gettig a new exhaust system. But am worried sbout smog. 2001 GT SC
Posts: 20 | From: california | Registered: Sep 2003  |  :
twisted54
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My bassani x with hiflow cats on my h/c/i 5.0 has passed smog with flying colors everytime... [patriot]

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2013 Black on Black 5.0 with Boost N Things - CORN FED 🌽

Posts: 3422 | From: ebay | Registered: Oct 2002  |  :
lawmans_GT
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You had no problem with the visual inspection?
Posts: 20 | From: california | Registered: Sep 2003  |  :
Blind
2.3L
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`96 and later vehicals need OEM cats.

I found that out the hard way when the stock cat plugged on my truck, which is a `97. I went to no less than 5 muffler shops with an aftermarket cat to get welded in replacement, and they wouldn't touch it, said OEM or kiss off basically.

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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi

Posts: 8521 | From: Fairfield | Registered: Jul 2003  |  :
twisted54
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no problems with visuals...

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2013 Black on Black 5.0 with Boost N Things - CORN FED 🌽

Posts: 3422 | From: ebay | Registered: Oct 2002  |  :
The TASM
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I passed with high flow cats, and the visual as well because they never looked under the car when I went. [Big Grin]
Posts: 558 | From: nineonesix | Registered: Jun 2001  |  :
BlackNGold
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quote:
Originally posted by blind:
`96 and later vehicals need OEM cats.

I found that out the hard way when the stock cat plugged on my truck, which is a `97. I went to no less than 5 muffler shops with an aftermarket cat to get welded in replacement, and they wouldn't touch it, said OEM or kiss off basically.

[BS flag]

If the cats are faulty you can replace them with any cat you want...

[ April 17, 2004, 09:28 AM: Message edited by: Black94 5.0 ]

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-SLOWER TRAFFIC KEEP RIGHT-

Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001  |  :
vpr_klr
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quote:
[B]If the cats are faulty you can replace them with any cat you want...[/B

[ April 17, 2004, 09:28 AM: Message edited by: Black94 5.0 ]

Rob's right,
California law states that the cats are replacable if not functional or after 50K or 75K miles, doesn't matter what car or truck or brand of cat as long as it is epa legal which most, if not all, are, good luck. [patriot]

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Project crustang has begun
14 mustangs and counting...

Posts: 893 | From: Livermore | Registered: Oct 2003  |  :
Blind
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just stating my experience with replacing the cats on my `97 gmc truck, about 6 months ago down in ventura county (socal).

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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi

Posts: 8521 | From: Fairfield | Registered: Jul 2003  |  :
slidewayz94
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quote:
Originally posted by blind:
just stating my experience with replacing the cats on my `97 gmc truck, about 6 months ago down in ventura county (socal).

most shops won't replace them.
Posts: 4251 | From: Sac | Registered: Jul 2003  |  :
PurpleNotch
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quote:
Originally posted by lawmans_GT:
Anyone with flow cats ever pass smog with them. I was considering gettig a new exhaust system. But am worried sbout smog. 2001 GT SC

High flow cats will pass smog if you need the pipe installed drop me a pm i do mustang performance and audio at my shop. thank you, shaun [patriot]

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**The creator of the infamous purplenotch**

http://www.mustang50magazine.com/featuredvehicles/m5lp_0508_1988_ford_mustang_lx/index.html

Posts: 3177 | From: Bay area | Registered: Jun 2003  |  :
dynolabs
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I've had success using the CarSound CARB/EO certified dual CAT systems by Magnaflow. They come with EO numbers which is all the smog shop needs to pass it. Recently had a 95 GT pass with just the dual hi-flow CarSound CATS instead of the OEM 4-CAT setup. The website is:
www.car-sound.com
Go to: PRODUCT->UNIVERSAL FIT->CALIFORNIA COMPLIANT
Ask for the EO number if you get these CATs.
Good luck!
Ray

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Dyno Labs, LLC
SCT Tuning
San Ramon, CA
(925)831-8240
info@dynolabs.net

Posts: 5 | From: San Ramon, CA | Registered: Apr 2004  |  :
94gt
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just lower your car with some springs, and I'd bet most techs wont want to lay on the ground to look... [Razz]

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2020 Explorer ST
2011 Silver Raptor 'Screw

Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003  |  :


 
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