Kevv_Si
Well-Known Member
Hey guys, I'm new to modding and don't know if I should add a catalytic converter to my full race downpipe? It's an additional $100 and if it's that much more what's the reason for having the catalytic converter on there.
Full race downpipe
- Thread starter Kevv_Si
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Dar-Dar
Mordorator
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- Civic Si
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- Fiji Blue Pearl Coupe Coolest Member Since: May 15, 2011
Catalytic converters are for emissions. They convert the harmful gases (including carbon monoxide) into carbon dioxide. If you run a downpipe without a cat converter, you will fail the inspection (probably 3 years from now).
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Kevv_Si
Well-Known Member
Thanks for the response! Hmmm maybe it's worth the extra $100 to get it out of the way.
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do you have emissions testing where you live?
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Kevv_Si
Well-Known Member
I don't think so I will check.
otero915
Active Member
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It just depends what state you are from. I'm from Texas and run skunk2 alpha catless headers along with mega power rr exhaust. My header came with a CEL eliminator so no codes will pop up. You'll pass your inspection as long no codes come on. But again depends how your state laws work.
Nix
Jötunn Moderator
Yup. Totally depends on state. I say get it so you don't stink out all the people who have to drive around you though! Much appreciated!
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Kevv_Si
Well-Known Member
Y
is it really that bad? Lol
Nix
Jötunn Moderator
Yes. If you ever drive behind someone for any length of time that doesn't have a cat or have an old POS car where it doesn't work, it's bad. It gives me a headache pretty quickly but some people don't seem to notice. It's that bad smell you get behind certain cars. i don't know how to explain it but yea.
I always suggest people get it for the ease of passing emissions and for courtesy if nothing else. You don't have to get one and it does sacrifice some power.
I always suggest people get it for the ease of passing emissions and for courtesy if nothing else. You don't have to get one and it does sacrifice some power.
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Kevv_Si
Well-Known Member
Ohh soo there's power loss without it? Guess I'm spending another $100 lol
Nix
Jötunn Moderator
No no no, power loss with the cat.
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Kevv_Si
Well-Known Member
Ohh ok thank! I really do appreciate your responses!
Nix
Jötunn Moderator
No problem man. I just want you to get what you really want and get what you think you're getting.
Keep in mind it's usually about 3-5hp difference between cat and no cat. To me it wasn't worth the smell and emissions trouble.
Juan Ortiz
Well-Known Member
I agree get the catted one
stilletto
Well-Known Member
Difference is negligible. The cat will muffle any exhaust a bit as well.
otero915
Active Member
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I don't really mind the smell. Just smells like clean fuel to me. Then again I'm use to fumes since I weld a lot.
XxDGeezyxX
Well-Known Member
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Is the coating necessary for these?
mySIck
Well-Known Member
The only thing I found out about that was. The coating helps reduce the heat. And is manly used for built or Supercharged motors. But I could be wrong.
Dennis Rockholt
9k Alll Day
I am running open dp since I live in a county without emissions. Just all depends on where your at...Tn isnt really all that bad though