Honda Civic Civic Del Sol Exhaust Manifold with Catalytic Converter & Gasket Kit - 1AEMK00182

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This exhaust manifold with catalytic converter is just what you need to get your vehicle running great again!


  • New 2 piece design with new catalytic converter
  • 3 bolt exhaust flange
  • Heat shield included
  • Has 2 provisions for Oxygen (O2) sensors
  • Includes Gaskets and Hardware
  • Direct replacement
  • Not correct for models with California emissions

Item Condition: New

5 Year Warranty

This item is backed by a 5 Year Warranty. In the event this item should fail during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. 

Emissions Note:

Due to state emissions regulations, we cannot ship this item to the state of California as it is not C.A.R.B ( California Air Research Board) approved for use in this state.

Due to New York state emissions regulations, this item cannot be installed on a California emissions equipped vehicle in the state of New York.

Due to Maine state emissions regulations, this item cannot be sold for or installed on a California emissions equipped vehicle of the model year 2001 or newer in the state of Maine.

All emissions information for a vehicle can be found on a tag under the hood. If the tag is missing, you can contact a dealership with your VIN to determine which emissions system your vehicle is equipped with.

  1. step : Removing the Upstream Oxygen (O2) Sensor (0:52)
    • Remove the O2 sensor with an O2 sensor socket and ratchet
    • If the O2 sensor will not remove, cut the O2 sensor wire and remove it with a 7/8 inch socket
  2. step : Loosening the Exhaust Manifold from the Engine (1:35)
    • Remove the two 12mm bolts from the heat shield
    • Remove the nine 12mm nuts from the exhaust manifold
    • Remove the 14mm bolt from the catalytic converter bracket
    • Remove the 10mm bolt from the oxygen sensor bracket
  3. step : Removing the Downstream O2 Sensor (2:58)
    • Disconnect the o2 sensor wiring harness
    • Pull the harness off of its bracket
    • Remove the O2 sensor with an O2 sensor socket and ratchet
    • If the O2 sensor will not remove, cut the O2 sensor wire and remove it with a 7/8 inch socket
  4. step : Removing the Catalytic Converter (3:18)
    • Raise and secure the vehicle
    • Remove the three 13mm bolts from the catalytic converter
    • Pull the catalytic converter up and out
  5. step : Preparing the New Catalytic Converter (4:19)
    • Remove the two 12mm bolts from the new heat shield
    • Pull the heat shield off the new catalytic converter
    • Remove the 14mm bolt from the old catalytic converter bracket
  6. step : Installing the New Catalytic Converter onto the Engine (5:07)
    • Pry out the old catalytic converter gasket with a flat blade screwdriver
    • Push a new gasket into the exhaust pipe
    • Pull off the old exhaust gasket
    • Hang a new exhaust gasket on the studs
    • Thread the nuts off the bottom of the new catalytic converter
    • Push the new catalytic converter into place, lining up the studs with the exhaust pipe flange
    • Push the exhaust manifold onto its studs
    • Fasten the nine 12mm nuts onto the exhaust manifold
    • Tighten the 12mm nuts to 25 - 30 foot-pounds of torque
    • Put the bracket into place on the catalytic converter
    • Insert the 14mm bolts into the bracket
    • Put the heat shield into place
    • Insert the two 12mm bolts into the heat shield
  7. step : Reinstalling the Upstream O2 Sensor (7:20)
    • Put the O2 sensor into place
    • Tighten the 02 sensor with the O2 socket
    • Insert the 10mm bolt into the oxygen sensor bracket
  8. step : Fastening the Catalytic Converter to the Exhaust Pipe (7:37)
    • Fasten the three 13mm nuts onto the catalytic converter
    • Tighten the 13mm nuts to 25 - 35 foot-pounds of torque
  9. step : Reinstalling the Downstream O2 Sensor (7:53)
    • Thread the O2 sensor into place
    • Tighten the 02 sensor with the O2 socket
    • Reconnect the O2 sensor wiring harness
    • Clip the harness into its bracket

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Jack Stands

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Ratchets & Related

  • A Piece of Pipe (for leverage)
  • Ratchet
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket
  • 11mm Socket
  • 12mm Socket
  • 13mm Socket
  • 14mm Socket

  • Sockets - SAE

  • 7/8 Inch Socket

  • Specialty Tools

  • O2 Sensor Socket

4.75/ 5.0
8 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Good fit where it matters
This part was a perfect match for my 98 Honda Civic LX except for one small detail that I am hoping doesnt affect the car in any way. I installed everything as it was on the 1aauto youtube video and didnt have trouble until i was fitting the bolt that is supposed to go on the engine bracket and bolted into the engine, it seemed as though the whole on the part for that area was crooked or mis-sized to fit the original bolt, with a bit of struggle i was able to put both bolt and the nut on but it failed to stay on there twice possibly because of the engine vibrations but i have yet to try the last method which is putting loctite on there to secure the bolt to the bracket without it unscrewing with the vibrations.
September 30, 2016
Civic exhaust manifold
This manifold was an excellent buy. Installation was straight forward. The quality and the value were first rate.. The only real difficulty I had was getting the old original manifold out. I shopped around for a long time and most of the other places prices were much more. Im convinced you wont get a better deal on a new converter anywhere than 1A auto
February 19, 2017
Great product
This same product at local auto parts stores was around $400. Why pay that much when they both have the same warranty! 1AAuto was extremely fast and friendly. I ordered this on a Wednesday morning and by Thursday afternoon it was on my door step. After clearing the check engine light after replacing the cat/exhaust manifold I have driven well over 1000 miles and the light has stayed off.
March 1, 2017
Quality design with proper fit to replace one. Install notes!
Definitely recommend if you have to replace your old combined manifold/catalytic converter. A couple notes from my install experience: the old 13mm bolts on the bottom side of the flange were 14mm; the new ones are 11/16" (not 13mm); I needed a M10x1.25x40mm bolt to replace the original bolt on the bracket attached to the manifold / engine block due to the old flange having been threaded but the new one is not - so the old bolt wasnt long enough to add a nut on the bottom side. And notice which side the manifold gasket is facing when you remove and be sure to mount the new one facing the same way. For me the trim around the port holes was concave side out facing away from the engine. But in general the instructions on their site are great. IF you follow them sequentially you will be in good shape. And you might not do something like install the top O2 sensor BEFORE installing the new heat shield, then have to install it again after the installing the shield. But the new pieces fit great; is quiet (found I had a crack in my old 230K mile OEM manifold); and once I replaced the downstream O2 sensor its like new again!
July 21, 2017
Excellent products, arrived sooner than expected.
First time to order from a1 auto and definitely will keep shopping again. Fully satisfied with my autopart, exelent quality, fit perfectly and great performance. I do recommend. Thanks guys, keep up the good work.
November 22, 2017
Oem Quality
The Exhaust Manifold is a great product, fits like a glove. The part were you connect the Exhaust manifold with the catalytic (the screw) was stripped and had to go to the auto-parts store to get a tap and die-set to try to save the screw. The videos did help as to how to properly disassemble and re install the product.
April 9, 2018
Easy Installation, Quality part
I had my mechanic install this for me and from what he told me the product seems sound. Easy installation and it passed a emissions test. So couldnt be happier with it. For first time buyers of catalytic converters, when you first get it, it will need to burn off some anti-rust prevention off of it. So dont be alarmed when you drive it for the first time that some smoke is coming off of it.
May 9, 2018
Installed without a hitch
Well buying parts from a company like this was a no brainier after doing some checking around on prices and !A autos reputation. here is the three reasons I went with them. Number one, the price was right. Number two,same day free shipping, and number three the most important one , it match perfect to the Honda factory install one we took off, Plus all the hardware was there and we install it in no time, and without any trouble ( Easy P-easy)
December 18, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Will this work on a 2000 Civic HX ?
Jay D November 13, 2015
The this will work on the HX models with "Federal emissions ONLY". Please verify this with the Honda dealer before you purchase.
Brian F November 24, 2015
Will this work for my 1999Honda Civic GX natural gas ?
T K May 11, 2016
1998-2000 Honda Civic Exhaust Manifold with Catalytic Converter & Gasket Kit for L4 1.6L (excluding EX Models) (excluding SI Models) (excluding California Emissions) You need to verify non Cali emissions first. Otherwise yes, it ill work.
Brian F May 11, 2016
which cat. converter do i buy for an ex 97 civic?
Rj J May 1, 2018
The exhaust manifold and catalytic converter come as one assembled unit. The one I got was part number 1AEMK00182. Im not sure if you can buy them separate. Also, look at the one that is currently on the car to check the style and bolt pattern.
Keith C May 1, 2018
Year Make Model Description
1996-1997Honda Civic Honda Civic Exhaust Manifold with Catalytic Converter & Gasket Kit L4 1.6L (excluding EX Models) (excluding California Emissions)
1998-2000Honda Civic Honda Civic Exhaust Manifold with Catalytic Converter & Gasket Kit L4 1.6L (excluding EX Models) (excluding SI Models) (excluding California Emissions)
1996-1997Honda Civic Del Sol Honda Civic Del Sol S Exhaust Manifold with Catalytic Converter & Gasket Kit L4 1.6L (excluding California Emissions)
Part #: 1AEMK00182

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Get it in: 2 - 4 Business Days

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How-to Video:

(08:21 min)