1999-00 Honda Civic Catalytic Converter - 1ACCD00245

Warranty & Shipping
Product Reviews
Vehicle Fit

This new direct fit, aftermarket, stainless steel catalytic converter is a great replacement. It is made of the highest grade materials for long lasting durability.


  • Direct Fit
  • Replaces dealer part numbers: 18160-P2P-A00, 18160P2PA00
  • Details:
    • Inlet:
      • 2 Bolt triangular flange
    • Outlet:
      • 3 Bolt triangular flange
    • Oxygen sensor bushing mounted on CENTER of converter
  • High quality 409 grade stainless steel
  • Includes all Pipes and flanges for direct installation (additional clamps may be required)
  • Certified for the following agencies:
    • US Environmental Protection Agency (EPA)
    • Ministry of Environment, Ontario & British Columbia - Canada
  • Built to strict quality control standards

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.

2.00/ 5.0
5 Stars
4 Stars
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2 Stars
1 Star
Improper Design
The oxygen sensor port is located such that once the converter is mounted, the sensor wire misses the gearshift rod (some sort of linkage/rod...believe its the gearshift rod for manual transmissions) by a hair i.e. not enough clearance. This can cause future potential problems of the sensor wire scuffing with the rod.
January 25, 2017
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
Does this include both gaskets also?
Mark M June 30, 2016
No , I just reused the gaskets that where already on the old one
Shawn S June 30, 2016
No, gaskets are avail at your local auto parts store and should be replaced at the time of installation.
Brian F June 30, 2016
This product is an actual catalytic converter and not a test pipe correct?
Alex T February 17, 2017
This is a catalytic converter, NOT a test pipe.
Tim K February 19, 2017
Year Make Model Description
1999-2000Honda Civic Honda Civic SI Catalytic Converter
1999-2000Honda Civic Honda Civic EX Catalytic Converter
Part #: 1ACCD00245

Out of Stock