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Joined: Aug 2003
Posts: 44
guitars34
Member
guitars34 Oct 3, 2:33am - #50677 

Member
2000 Toyota Celica

Joined: Aug 2003
Posts: 44
Kansas City, Missouri
Catalytic converter and O2 sensors.

I was thinking of cuting off my stock cat and boring it out then welding it back on. Does anyone know if this will cause my check engine light to come on because of the sensors? And has anyone tried this
Joined: May 2003
Posts: 5,346
spaztikid
dikitzaps
spaztikid Oct 3, 2:48am - #50678 
dikitzaps
1974 Toyota Celica

Joined: May 2003
Posts: 5,346
LA
heard of it before. only 1 way to find out. but there's no way you'll ever pass an emmisions test w/o the cat.

**DONOTDELETE**
Unregistered
Anonymous Oct 3, 3:00am - #50679 
Unregistered



Do you have to take an emmisions test? Im not sure but I have never heard of anyone i know going.
Joined: Dec 2002
Posts: 1,660
Grand-Touring-Dan
ECelica Staff
Grand-Touring-Dan Oct 3, 4:16am - #50680 
2001 Spec Blue Toyota Celica
ECelica Staff
2001 Toyota Celica

Joined: Dec 2002
Posts: 1,660
Houston, TX
well fellas. You will not pass emissions and your CEL will come on. Don't 'bore' out the cat. Just get a Hi Flo one. They are carb approved and will not set off the light. thumbsup
Joined: May 2003
Posts: 5,346
spaztikid
dikitzaps
spaztikid Oct 3, 5:01am - #50681 
dikitzaps
1974 Toyota Celica

Joined: May 2003
Posts: 5,346
LA
high flo cats only add like 1 hp...our stock cats are good enough. its not woth the $$$ IMO
Joined: Aug 2003
Posts: 1,251
silver
Specialist
silver Oct 3, 6:06am - #50682 
2000 Silver Toyota Celica GT
Specialist
2000 Toyota Celica GT

Joined: Aug 2003
Posts: 1,251
California
dont mess with your cat. you could get cancer or some other disease. they are just full of bad stuff.

and dont take it off either, because then all of that bad stuff gets into the air and we all have to breathe it. yuck puke
Joined: Jul 2003
Posts: 498
ev3
Senior Member
ev3 Oct 3, 8:07am - #50683 

Senior Member
2002 Toyota Celica ZR

Joined: Jul 2003
Posts: 498
Australia
Originally Posted by silver
dont mess with your cat. you could get cancer or some other disease. they are just full of bad stuff.

and dont take it off either, because then all of that bad stuff gets into the air and we all have to breathe it. yuck puke


rofl rofl rofl
Joined: May 2002
Posts: 3,295
Steven
ECelica Staff
Steven Oct 3, 8:08am - #50684 
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,295
Riverside, CA
For reals!!!!

Originally Posted by silver
dont mess with your cat. you could get cancer or some other disease. they are just full of bad stuff.

and dont take it off either, because then all of that bad stuff gets into the air and we all have to breathe it. yuck puke
Joined: Dec 2002
Posts: 1,660
Grand-Touring-Dan
ECelica Staff
Grand-Touring-Dan Oct 3, 8:32am - #50685 
2001 Spec Blue Toyota Celica
ECelica Staff
2001 Toyota Celica

Joined: Dec 2002
Posts: 1,660
Houston, TX
I got a Hi Flo cat. Someone got a problem? JK guys.

For real, if you want one, then get one.
Joined: Nov 2002
Posts: 396
Illusive
Member
Illusive Oct 3, 4:27pm - #50686 
Member

Joined: Nov 2002
Posts: 396
Southern California
i've got a test pipe, no cat and no res that I can bolt up for the track.

It makes a big difference. Dropped me an average 1 tenth in 1/8 mile times and gained 1 mph in traps, thats with it bolted up to my TRD alxe back exhaust.

unbolted/removed TRD exhaust with testpipe I've gotten close to 2.5mph gains in 1/8 mile traps!!!!!

from 77's to 79's

CEL will come on, it wont hurt anything but the enviornment, so only run it at the track!

Controlled Inertia
President
8.831 @ 79.8 mph (best 1/8 new motor 12/02/04)
2.007 (best 60')
All motor
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