Running a car with no catalytics...?

God of the

So my question is plain and simple: what would come of cutting the cats off a car to improve exhaust flow (along with new headers, H-pipe, cherry bomb mufflers, etc...)? I know this would take environmentally friendly to a whole new low, but what could happen to the engine? Thanks in advance!
What about on more modern cars? Wouldn't not having cats mess with the computer control system? The O2 sensors would be off the charts.

Answer
Depending on the year of your car, your check engine light will come on...if you don't fool it.

**additional info** The check engine light will come on with 1996 and newer vehicles (some before). There is a O2 sensor before and after the catalysts to measure the efficiency of the emissions device. If you remove it, it will think its not working properly and turn the light on.

mopar or muscle car???

evo_drifte

wich car would win in looks, top speed, smoke from the burnout, horspower, 1/4 mile-

a 1970 plymouth hemi'cuda.....with all origanal parts
and house of kolors- kandy raspberry covering the car[[beautiful color]] ~


or a 1970 chevrolet chevelle ss
zz572/720r v8 twin turbo engine(rated at 1620 horsepower) - magnaflow mufflers - hooker headers - BFgoodrich tires - vortech roots supercharger
color of this car his house of kolors- kandy blueberry
hemi's color is house of kolor-kandy raspberry

chevelles color is house of kolor-kandy blueberry

Answer
Great,.......... more pointless daydream questions without the pertinent info needed to even respond intelligently!! Lets start with tire sizes & gear ratios. Then you can move on to say......auto vs. stick torque converters & vehicle weights. All variables within 'stock' realm. Just to name a few..........My resource books rate the '70 Cuda Hemi @ 425hp

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