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Old Apr 27, 2007 | 09:12 AM
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Default Ctas! ?

is it possible for me to cut off my catalytic converters and replace them with piping? if so will i have any error messages or dummy lights turn on, etc?
any information is welcome.
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Old Apr 27, 2007 | 09:33 AM
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Originally Posted by The Spot
is it possible for me to cut off my catalytic converters and replace them with piping? if so will i have any error messages or dummy lights turn on, etc?
any information is welcome.
The SES light will come on, you will fail inspection and the car will be louder.
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Old Apr 27, 2007 | 09:42 AM
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You can remove them, but will fail visual inspection if they do that where you live. You can use o2 sims or tune out the rear o2 codes to prevent an SES light.

After removing the cats, the car fumes will smell different like it's getting too much gas. The car will be a bit louder, and you will gain a few HP.
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Old Apr 27, 2007 | 03:34 PM
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how much are O2 sims, and where can i get those at?
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Old Apr 27, 2007 | 05:00 PM
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http://www.ls1speed.com/catagory.cfm?catagory=Exhaust

Speed Inc
O2 Simulators
O2 simulators are required when an off-road pipe is installed, or the cats are "gutted". Easy 5 minute install, guaranteed not to set a "SES" light.


itemno description price buy
IZM993-1 (1) O2 Simulator - OBDII - F-Body $49.99 buy
IZM993-2 O2 Simulator Pair - OBDII - F-Body $89.99 buy
IZM993-2ext O2 Simulator Pair - OBDII - F-Body (with other exhaust purchase) $79.99 buy

--------------------------------------------------------------------------------

They're expensive. Some people put a spark plug fouler into the exhaust and then put the rear o2s into the foulers. They get enough heat to work, but not enough exhaust to set a code. Easiest/best thing to do is find somoeone to tune them out for you.
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Old Apr 28, 2007 | 10:25 AM
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thanks for all of the help... that pricing scared me away from doing it.
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Old Apr 28, 2007 | 10:58 AM
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This is what some people do. Worth considering... It allows the plug to be heated normally, but prevents it from detecting emissions. It's cheaper than sims, and it pretty easy. Still best to tune it out though.

http://www.srtforums.com/forums/showthread.php?t=93604
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Old Apr 28, 2007 | 04:57 PM
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thats a pretty cool trick.
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