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2004 S60 R exhaust Topic is solved

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2003 - 2007 S60 R

MDK
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2004 S60 R exhaust  Topic is solved

Post by MDK » Sun Mar 31, 2019 4:05 pm

Hey all... I'm replacing my exhaust with 3" turbo back exhaust. Eliminating the cat and resonator. So the question is should I worry about throwing a code? Ohio is not an inspection State or emissions testing. By the way I stripped out the 4c and replaced it with struts and springs I got from a 2007 AWD from Erie Volvo, full trans flush using the asin fluid and a new alternator.. any and all comments appreciated...MDK rolling on



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Re: 2004 S60 R exhaust

Post by abscate » Sun Mar 31, 2019 5:16 pm

The ECU monitors cat efficiency and also OXS heating so if you remove those you will code.


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Re: 2004 S60 R exhaust

Post by MDK » Sun Mar 31, 2019 5:52 pm

Thanks abscate. It has a place for both O2 sensors. I plan on re-installing. Just no cat. So I guess we'll see. The muffler guys said I'll have to re- tune it. Whatever that is...MDK



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Re: 2004 S60 R exhaust

Post by Rattnalle » Sun Mar 31, 2019 10:34 pm

abscate wrote:
Sun Mar 31, 2019 5:16 pm
The ECU monitors cat efficiency and also OXS heating so if you remove those you will code.
It won't just throw a code but run badly as well.

The cat is there for a reason, even if Ohio doesn't recognise it.



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Re: 2004 S60 R exhaust

Post by MDK » Mon Apr 01, 2019 4:06 am

Thanks Rattnalie... the guys at the muffler shop wouldn't install it because it didn't have a converter. I asked them if one could be installed and they scoffed...404 stainless?...huh. I'm going to try another shop.I want this to be a successful swap out. MDK
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Re: 2004 S60 R exhaust

Post by abscate » Mon Apr 01, 2019 7:16 am

I think the shops balk because installing a non-cat system is considered a 'modification to emission control' which the EPA fines individuals $2500 (thats only three BMW oil changes) but a shop $25,000.

You can just bolt that one up yourself, though. Rattalle raises a good point on if the ECM is going to go closed loop without a cat - I don't know about that.


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Re: 2004 S60 R exhaust

Post by EngineeringBloke » Mon Apr 01, 2019 10:09 am

Even if you restore both O2 sensors, as abscate mentions, it will throw a code. The rear O2 sensor is used to determine cat efficiency. When the rear O2 signal matches the front O2 signal, then the cat is considered failed, as will be in your case with no cat. So you will get a check engine light.



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Re: 2004 S60 R exhaust

Post by MDK » Mon Apr 01, 2019 12:29 pm

I just wanted to thank everyone for taking the time out of their busy schedules and respond to my post. You may or may not know... it's a 1000$ just for the factory exhaust plus labor. It's easy to see why I'm going this route. I called another muffler shop and told them what I'm up to and they said...no problem we can get a cat installed and hang the exhaust for about 500$ or so. A LITTLE RUMBLE PLEASE THANK YOU!!! MDK rolling on
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Re: 2004 S60 R exhaust

Post by abscate » Mon Apr 01, 2019 12:31 pm

Cool beans

When my next exhaust goes its FCP for me - and then I have to learn how to ship back old ones..


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Re: 2004 S60 R exhaust

Post by Rattnalle » Mon Apr 01, 2019 12:49 pm

abscate wrote:
Mon Apr 01, 2019 12:31 pm
Cool beans

When my next exhaust goes its FCP for me - and then I have to learn how to ship back old ones..
"Next exhaust"? I think my car will rust away before the factory exhaust catches up.



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