The 3" cat I had wouldn't let the car boost past 16psi, regardless of where I had the boost controller set. It was just restricting the exhaust so much that even with the wastegate fully shut, it wouldn't boost past that point. I punched the guts out of it, reinstalled it, and that problem was fixed.

Then I replaced the cat with a working one :D.

They have tho's now?

it probably won't work, but try to plead not guilty and show them a pic with a cat installed and say that the mto officer just didn't look in the right place and you don't know what a cat was so u couldn't prove him wrong at the time.

gtown69 wat kinda car do u drive?

civic

^ No suprise there. "rolleyes"

magazine report tested on civic stock 1.5 added 5 hp to civic lightly modded compared to shitty stock cat

my car runs rich and backfires often

backfire = melted cat

melted cat = no exhaust gases leaving

no exhaust gases leaving = blown motor

cats belong on stock cars:smilie_da

negatory

Really so why do WRC rally cars have Cats, and they seem to run fine and make power without them.
Why does Stillen have cats on their stupidly big HP cars.
Why does Hennessy still have cats on their 1000HP vipers. or Lingenfelter
need I go on.


god, this forum has to many retards.
I think 90% of the retarded street racers/ricers in Toronto come here.

w/ good tuning, there are no issues running a cat...

i have dyno runned my car with and with out good exhaust with cat and no cat nice exhaust my car isnt even close to stock but did it make a difference yes and mor ethen 2 whp so yeaa ....another thing mto look under ur ccar to see no cat or did test..?:thumbsup:
next summer im punching a cat out and putting it on ..i wont be able to live with my car gone and work ..
by the way motor getting built now blew another one so um 350 whp in hatch get ready;P:thumbsup:

its been done, its nothing special, its the furthest from original you can get, no one really cares.

The mto can tell it the cat has bin punch out or not, so don't even punch it out.

Maybe if you do a hack job of gutting it. Not if you do it properly...Visually anyways.

I have seen a car gain over 80whp by opening his exhaust dump and bypassing the cat/muffler. Same boost level. :smilie_da Needless to say his cat back was very restrictive.


Yea, what would be real original would be a jbody that is actually fast.