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Efficient Performance: Walker Exhaust 🚗 CalCat Carb 81172 Direct Fit Catalytic Converter Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.5
🌫️ Exhaust & Emissions, 🛠️ Replacement Parts

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Description of Efficient Performance: Walker Exhaust 🚗 CalCat Carb 81172 Direct Fit Catalytic Converter

CARB COMPLIANT -- For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations. DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication or welding. SUPERIOR TECHNOLOGY -- Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters). CONSISTENT PERFORMANCE -- Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance. STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability.

Reviews

Global ratings 3
  • 5
    1
  • 4
    2
  • 3
    0
  • 2
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  • 1
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Type of review

Revainrating 5 out of 5

Efficient Converter, Easy Installation

The Walker 81172 Converter is a fantastic automotive product that effectively converts exhaust pollutants into less harmful emissions. Through trial and error, I found that this product is highly efficient and able to improve my car's performance. It was very easy to install, and the instructions were straightforward. The only downside is that it's slightly more expensive compared to other options in the market. Overall, I would still highly recommend this product for anyone in need of a…

Pros
  • Easy to install
Cons
  • Requires rewiring of the vehicle's electrical system

Revainrating 4 out of 5

Slightly shorter than the OEM catalog.

This Walker CalCat is approximately 1/4 inch shorter than the OEM catalog. I have an aftermarket pipe before and after the catalytic converter so I can fit them without any problems. Other Miata NA owners with OEM pipes will have trouble installing these. Also you will need two new gaskets and stainless steel bolts and nuts to install this so there is no exhaust leak so this is a 4 start Review. Walker The CalCat is well made and comes with a reasonable warranty and 50 states of legal smog is a

Pros
  • Catalytic Converters
Cons
  • So-so

Revainrating 4 out of 5

Slightly shorter than the OEM catalog.

This Walker CalCat is approximately 1/4 inch shorter than the OEM catalog. I have an aftermarket pipe before and after the cat so I can adjust it with no issues. There will be installation issues for other Miata NA owners with stock OEM pipes. Also you will need two new gaskets and stainless steel bolts and nuts to install these to ensure no exhaust leaks. It is well made and backed with a reasonable warranty and at 50 states legal smog, it's a good price. However, if you don't know what you're

Pros
  • Everything is fine!
Cons
  • Modern