1991 Honda Civic Si Hatchback (1.6L) Catalytic Converter (Bolt on) California

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Aug 30, 2009
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Own a 91 Honda Civic Si (1.6L) and looking for a bolt on Catalytic Converter.

Where can I buy one?

Rock A currently does not offer any CARB converters for my car

Any advice is greatly appreciated
 
Bolt on? Didn't know anything like that existed. What may be the issue taking it to a muffler shop to have it properly fitted?
 
Bolt on? Didn't know anything like that existed. What may be the issue taking it to a muffler shop to have it properly fitted?
Bolt on Catalytic Converters have always been readily available but because of the high cost, most people would opt to go to a muffler shop to get one fitted and welded on. Since labor has gone thru the roof, I’m opting for a bolt on Cat instead of going to a muffler shop.
 
Magnaflow still makes a direct fit CARB-legal cat for your 1991 Civic Si :)

Part #3322635

You can get it from Summit

Walker #81141 used to be available for half the price, but they don't seem to make it anymore :(

Bolt on Catalytic Converters have always been readily available but because of the high cost, most people would opt to go to a muffler shop to get one fitted and welded on. Since labor has gone thru the roof, I’m opting for a bolt on Cat instead of going to a muffler shop.

the labor charge for cut-and-weld still shouldn't be that much, even now
 
Bolt on Catalytic Converters have always been readily available but because of the high cost, most people would opt to go to a muffler shop to get one fitted and welded on. Since labor has gone thru the roof, I’m opting for a bolt on Cat instead of going to a muffler shop.
It was $300 for USA muffler to cut out my muffler and weld in a flowmaster with some stainless steel tubing. Seemed reasonable to me 🤷🏻‍♂️ I can’t imagine much more than $150-$200 today to weld a cat
 
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