Quote:
Originally Posted by tony_2018
Okay but this is about a catalyctic converter for a lean burn engine. Honda even has different part#'s for the HX and DX models. Take a look for yourself.
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I faced the problem of needing to replace my manifold. From Honda its $650. They make cheaper eBay replacements and box store replacements that run $200-$400. I'm not spending 1/3 of what my car is worth on an exhaust manifold. I chose to convert my exhaust setup from the stock cat-in-manifold to the traditional manifold-downpipe-cat. I sourced a used exhaust manifold and downpipe from a Del Sol, and bought the magnaflow cat.
Even if you need to pass emissions tests, they are not testing your car in lean burn mode. It's running an A/F ratio just like any regular Civic engine, and its emissions are going to be the same as well. So as long as you have a cat made before 1981 that isn't clogged up you will pass emissions.