pros and cons of no cat with stock muffler

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themadness
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pros and cons of no cat with stock muffler

Postby themadness » Wed Jul 11, 2012 8:21 am

i live in NC where 95 and older cars dont have to undergo emissions testing. what would be the pros and cons of cutting out the cat and leaving the stock muffler? or does it even matter?

i think the CC is shot anyway so i have been considering what to do.....



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Re: pros and cons of no cat with stock muffler

Postby 3X00-Modified » Wed Jul 11, 2012 8:23 am

It will be a bit louder but with the stock muffler probably not that much... other than that you may get sick of the stink... I know I do when I have my non catted part on my car.



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Re: pros and cons of no cat with stock muffler

Postby themadness » Wed Jul 11, 2012 8:29 am

how bad is the stink? a nasty fart in the car or just a problem for people behind me....

could it help HP and gas mileage?



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Re: pros and cons of no cat with stock muffler

Postby scd88ga » Wed Jul 11, 2012 9:09 am

themadness wrote:how bad is the stink? a nasty fart in the car or just a problem for people behind me....

could it help HP and gas mileage?


Yes, if your current one is bad that is! Otherwise no, not really...


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Re: pros and cons of no cat with stock muffler

Postby heavywoody » Wed Jul 11, 2012 9:22 am

If yours is bad, just buy a universal one, they can be had for $60-70 online.

Hell, I have one that I don't need, never been used... contact me if interested. It's a high-flow Magnaflow unit.


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Re: pros and cons of no cat with stock muffler

Postby 3X00-Modified » Wed Jul 11, 2012 9:51 am

themadness wrote:how bad is the stink? a nasty fart in the car or just a problem for people behind me....

could it help HP and gas mileage?


You will get a woft of exhaust fumes almost any and all stops you come to if your windows are down. I had my legacy catless and that would give me a headache, granted that is turbo'd so it does run a bit richer from time to time so excess fuel may contribute to that being a stronger smell.

Bottom line as Brett said, it will give you no performance gains at all.




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