gutted cats
11-11-2005, 12:38 PM
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gutted cats
gutted the cat today and it made a huuuge difference. sounds the same, no rasp or anything and now you can hear the tires still trying to break loose at 50-55mph WOT. it revs alot faster now too it's about a 2 hour job from start to finish and well worth it. just make sure you put a cat back on if you drive it out on the street 
just gotta get the mil sim to get rid of the engine light and it'll be all set
just gotta get the mil sim to get rid of the engine light and it'll be all set
11-11-2005, 12:55 PM
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nope but some states don't use emission tests anyways. this is only temporary too until i can get an aftermarket downpipe w/ hiflow cat installed... or maybe just a test-pipe
11-14-2005, 03:27 PM
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Originally Posted by selfinfliction
gutted the cat today and it made a huuuge difference. sounds the same, no rasp or anything and now you can hear the tires still trying to break loose at 50-55mph WOT. it revs alot faster now too it's about a 2 hour job from start to finish and well worth it. just make sure you put a cat back on if you drive it out on the street
just gotta get the mil sim to get rid of the engine light and it'll be all set
just gotta get the mil sim to get rid of the engine light and it'll be all set
mil sim ?
11-14-2005, 03:30 PM
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I know people that have been stopped at federal checkpoints/roadblocks and given $2000 tickets because their exhaust was modified and couldn't pass an emissions test there on the spot - and this is here in a testing free zone. So beware.....
11-14-2005, 05:13 PM
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Originally Posted by silverSS
if its no louder, how are they going to tell?
edit...oh yah and how do you do this? and what exactly does it do?
edit...oh yah and how do you do this? and what exactly does it do?
just pop off the downpipe, take a long handled tool of some type and beat all the **** out of it. takes about an hour
i got my flowmaster exhaust put on today and i've already decided to put a high-flow cat back on tomorrow morning. the flowmaster sounds bad ass with no rasp when you rev it up, but when you have a load on the car and you go WOT it sounds like ass from not having a cat. stock w/o cat sounded pretty good though
11-14-2005, 05:26 PM
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By MIL SIM he meant an o2 simulator, not MIL SIM cause that would Malfunction Indicator Lamp Simulator 
All the o2 sim does is take the place of the 2nd o2 sensor located behind the cat and send the PCM a reading it wants to see as to not set a code from a cat thats flowing too much.
And self, what do you have done to your car to make the tires almost break loose at 55mph?
All the o2 sim does is take the place of the 2nd o2 sensor located behind the cat and send the PCM a reading it wants to see as to not set a code from a cat thats flowing too much.And self, what do you have done to your car to make the tires almost break loose at 55mph?
11-14-2005, 06:58 PM
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Originally Posted by GTPsRule
And self, what do you have done to your car to make the tires almost break loose at 55mph?
intake mod, tog header and gutted cat.. i don't think i should have said break loose, cause that sounds like it was trying to smoke them lol you can feel them losing grip though up till you hit between 50-55, that''s from a launch, not going 55 and punching it
11-15-2005, 03:27 PM
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Ok that makes a bit more sense, cause the way you worded it made you sound like you could punch it from a roll and almost break em loose, which on any cobalt at this stage I think would be pretty damn hard lol. Thanks for clearing that up
11-15-2005, 05:15 PM
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Thanx for ruining the environment.
People who defeat the emissions controls on cars should be sentenced to drive a hybrid for 10 years.
http://www.epa.state.oh.us/pic/nr/19.../tstchang.html
Right now MD makes you do an OBDII test only so you could pass with an O2 sim, but they also do a visual inspection and if they see that SIM your car fails.
People who defeat the emissions controls on cars should be sentenced to drive a hybrid for 10 years.
http://www.epa.state.oh.us/pic/nr/19.../tstchang.html
Right now MD makes you do an OBDII test only so you could pass with an O2 sim, but they also do a visual inspection and if they see that SIM your car fails.
11-15-2005, 05:26 PM
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Originally Posted by zinner
Thanx for ruining the environment.
i bet i killed more in 6 years driving an m1a1 than my entire neghborhood would in a car their entire lives... combined
11-15-2005, 07:14 PM
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Originally Posted by GTPsRule
zinner i really hope youre being sarcastic. Im assuming you are, but online sarcasm is super hard to decipher sometimes
