Convert LX integrated Exhaust Manifold to EX?
10-23-2013, 07:34 PM
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Convert LX integrated Exhaust Manifold to EX?
I have a 99 Civic with a cracked exhaust manifold. It's a one piece manifold / catalytic converter.
I am in CA, and the cheapest replacement I have found is a Dorman for $320 if I buy it online.
A couple of questions:
1. Can this whole piece be removed from the top, or do I have to pull it down from under the vehicle?
2. If it has to come out from under the car, would I have to remove the exhaust pipe as well?
3. I have seen references to changing the set up to an EX setup where the manifold and catalytic converter are separate. What does that process involve?
Thank you.
I am in CA, and the cheapest replacement I have found is a Dorman for $320 if I buy it online.
A couple of questions:
1. Can this whole piece be removed from the top, or do I have to pull it down from under the vehicle?
2. If it has to come out from under the car, would I have to remove the exhaust pipe as well?
3. I have seen references to changing the set up to an EX setup where the manifold and catalytic converter are separate. What does that process involve?
Thank you.
10-23-2013, 08:17 PM
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Re: Convert LX integrated Exhaust Manifold to EX?
http://www.hondacivicforum.com/forum...version-73237/
The right way:
Convert to the EX exhaust layout by installing the EX header, installing an EX catalytic converter located directly after the header, and using an O2 sensor wire harness extension to relocate the O2 sensor to it’s new location on the EX catalytic converter.
You can convert using bolt on parts designed for an EX, or you can cut and weld the exhaust parts together as needed. You can have your original catalytic converter cut off and welded directly after the header if you want. The advantage to bolt on parts is that anyone can do it themselves with simple hand tools, and different pieces can be taken apart in the future if necessary.
Any method will work, as long as the finished product has this layout:
Convert to the EX exhaust layout by installing the EX header, installing an EX catalytic converter located directly after the header, and using an O2 sensor wire harness extension to relocate the O2 sensor to it’s new location on the EX catalytic converter.
You can convert using bolt on parts designed for an EX, or you can cut and weld the exhaust parts together as needed. You can have your original catalytic converter cut off and welded directly after the header if you want. The advantage to bolt on parts is that anyone can do it themselves with simple hand tools, and different pieces can be taken apart in the future if necessary.
Any method will work, as long as the finished product has this layout:
10-24-2013, 10:45 AM
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Re: Convert LX integrated Exhaust Manifold to EX?
i had this same problem. i passed smog last week. I used the epoxy based manifold fix from autozone. ive had it on there probably 2 months and still holding.
NOTE: i do have the heat shield covering the crack, but it isnt illegal to use. They will be more likely to check for cracks if they see it though.
NOTE: i do have the heat shield covering the crack, but it isnt illegal to use. They will be more likely to check for cracks if they see it though.
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