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View Full Version : Catalytic converter ?????


Jared1970Chevelle
05-14-2007, 11:32 PM
ok..... few questions....

1990 camaro tpi motor

1) if i take out my catalytic converter will my check engine light come on?
2) will the car run better or worse? (think my cat is clogged)
3) anyone have no cat or a gutted cat on their car? or should i buy a 50 doller azone one?


anyone????

thanks...

V
05-15-2007, 07:10 AM
1, no, check engine light will not come on
2. if its clogged, it will definately run better without it
3. majority of my vehicles didnt have cats

Jared1970Chevelle
05-15-2007, 10:07 AM
thanks.... 2 more things... i heard that if theres no cat there isnt enough backpressure to start the car? that sounds totally wrong to me... and will the car run rich if i put a testpipe in its place???

thanks again..

j0n
05-15-2007, 10:18 AM
thats dumb...the car will start fine. it will probably run ever-so-slightly rich but nothing to be concerned about

98tadriver
05-15-2007, 11:09 AM
thats dumb...the car will start fine. it will probably run ever-so-slightly rich but nothing to be concerned about


i agree with j0n 100% i havent had cats since i got my drivers license, youll be fine!

WildBillyT
05-15-2007, 03:11 PM
thanks.... 2 more things... i heard that if theres no cat there isnt enough backpressure to start the car? that sounds totally wrong to me... and will the car run rich if i put a testpipe in its place???

thanks again..

BS. Your car will start fine.

Jared1970Chevelle
05-15-2007, 03:52 PM
yea i figured it was ******** but never heard of it before so i asked...lol...

how much louder will it be with no cat? or high flow cats compared to stock?

anyone got no cat on a tpi 1990 camaro?

j0n
05-15-2007, 04:11 PM
yea i figured it was ******** but never heard of it before so i asked...lol...

how much louder will it be with no cat? or high flow cats compared to stock?

anyone got no cat on a tpi 1990 camaro?

with a stock catback and exhaust manifolds it wont be loud enough to notice

NJSPEEDER
05-15-2007, 04:54 PM
if the rest of the exhaust is stock, it will be about as loud as a car with a cat back system.

Jared1970Chevelle
05-15-2007, 11:26 PM
sweet.... i got a flowmasta muffler on it now and it sounds like its got a cam in it.....trying to get that thumpy cam sound without putting one in... maybe ill go with a testpipe....

as long as its under 81 decibles....mr po po cant ticket

chrisfrom nj
05-16-2007, 02:49 AM
gut your cat its better just incase you get pulled over the cops see a cat underneath your car

GP99GT
05-16-2007, 08:00 PM
trying to get that thumpy cam sound without putting one in...

:lol: thats the dumbest thing ive read in a while....rice.

anyway, the only reason removing a cat would have adverse effects, is if theres an o2 sensor after the cat, or when you have to go to inspection...oh and the smell is pretty obnoxious (at least on my car anyway)

j0n
05-16-2007, 08:01 PM
y'know i never noticed any smell on my t/a, my friends all did though

GP99GT
05-16-2007, 08:51 PM
y'know i never noticed any smell on my t/a, my friends all did though

my mustang is horrible...well i guess its cause my weatherstripping around my hatch doesnt really seal, and since the exhaust dumps under the car it gets sucked in there if i have my windows open/tops off...so i smell like exhaust after driving it

Jared1970Chevelle
05-17-2007, 05:31 PM
some dudes selling a high flow for 30 buks imma just buy that for a mild cam sound...