# how to pass emission with no cat ??

**URL:** <https://forums.speedlife.net/t/how-to-pass-emission-with-no-cat/204004>\
**Category:** PittSpeed Automotive\
**Created:** [October 23, 2009, 2:40am UTC](https://forums.speedlife.net/t/how-to-pass-emission-with-no-cat/204004 "2009-10-23T02:40:45Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![neonracer01](https://avatars.discourse-cdn.com/v4/letter/n/9fc348/32.png) [@neonracer01](https://forums.speedlife.net/u/neonracer01)\
**Post date:** [October 23, 2009, 2:34pm UTC](https://forums.speedlife.net/t/how-to-pass-emission-with-no-cat/204004/11 "2009-10-23T14:34:24Z")

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> [@whos riding thier motorcycle today.....](https://forums.speedlife.net/t/whos-riding-thier-motorcycle-today/41406/11):
>
> How about an 02 simulator (electric or mechanical) for the rear 02 sensor? They’re usually not very expensive and will guarantee no CEL.

i was looking into buying one but cant find one. were can i get it?

> [@BlkP42E"](#):
>
> you prob freed up alot of horsepower by gutting the cat on an 4banger s10  
> its actually my 03 impala
> 
> 😃

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