bypass cat - Maintenance and Repair Forum

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bypass cat
Thursday, May 17, 2012 6:33 PM
I have a 1996 chevy cavalier four door with the 2.2l and id like to get rid of the cat or hollow it out but what do i have to do to make the check engine light come on or so it doesnt through codes

Re: bypass cat
Thursday, May 17, 2012 6:38 PM
i ment so the check engine light does not come on
Re: bypass cat
Friday, May 18, 2012 6:38 AM
This is on a civic forum, but same concept. Our size for the anti-foulers in the 18mm size. I did this to my cav, and I'm not holding my breath, but I've got 3000 miles on it so far and the cel has not come back, so we'll see.

http://www.civicforums.com/forums/229-electrical/329421-diy-o2-sensor-bypass-spark-plug-non-fouler-trick-installation-w-pics.html




Re: bypass cat
Friday, May 18, 2012 7:20 AM
Either leave it on or put a high flow cat on
http://www.importtuner.com/tech/impp_0904_hollowed_out_catalysts_make_power_fact_or_fiction/ <- proved power loss over stock
http://www.importtuner.com/features/0610impp_catalytic_converter_removal/viewall.html <- proved only 1HP gain with test pipe over high flow cat
Re: bypass cat
Friday, May 18, 2012 9:18 AM
So did you just hollow yours out then?
Re: bypass cat
Friday, May 18, 2012 12:37 PM
Me, no. I put on a high flow that threw a CEL. But that anti-fouler thing worked fine.




Re: bypass cat
Friday, May 18, 2012 3:23 PM
Been using the fouler for the last 4 years and never had any problems or CEL codes on that car
Re: bypass cat
Saturday, May 19, 2012 6:50 AM
What do you guys think of just putting a straight pipe where the cat goes?? Good or bad
Re: bypass cat
Saturday, May 19, 2012 7:24 AM
Check the second link I posted and then make your mind and the first one is to prove that a hollowed out cat loses power if it wasn't clear.
Re: bypass cat
Sunday, May 20, 2012 8:10 PM
Mitchell Scala wrote:What do you guys think of just putting a straight pipe where the cat goes?? Good or bad


first quest is WHY?



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