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ER Spec Catco 3 Inch High Flow Catalytic Converter

$175.00 $149.99 (You save $25.01)
5 Star Rating

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This Catco catalytic converter was created for the Nissan 240sx 89-98. It’s a high flow, 3 Inch catalytic converter with a honeycomb design that operates significantly better than any stock catalytic converter. This part bolts to any 3" SR downpipe or Hot Shot header and to any Cat-Back exhaust system.

Environmentally conscious state regulations generally require some sort of catalytic converter, as these crucial parts reduce the amount of harmful chemicals that your car releases into the environment. However, the problem with a stock catalytic converter is that usually it restricts your exhaust flow, which results in lower horsepower and torque. A stock converter can also be easily clogged and needs to be frequently replaced.

Fortunately, the Catco catalytic converter is engineered to give your car the optimal exhaust flow. This high caliber converter is essential because it prevents obstructions in the exhaust system and provides more horsepower and torque. This Catco converter is also a heavy load converter with increased cerium and zirconia contents which can help prevent catalyst related codes.

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If you have any questions about our 3 inch catalytic converter and its relation to engine setup, please give us a call and our knowledgeable team will be happy to help. We strive to provide the best performance parts anywhere, as well as top-notch customer service. Order your premium catalytic converter and enjoy the benefits of an exhaust system operating in peak condition!


  1. Excellent Fitment

    Posted by Thomas Teal on

    Very easy to install, great fitment, includes all hardware. This catalytic converter bolts up well with any 3" header and catback (any ISR/ISIS product). Does not rattle when accelerating, very quiet! (My application was an S13 240SX)

  2. Very Easy Install

    Posted by Ryan Mills on

    Fitment was on point. The most difficult part of the install was removing the original cat bolts (super rusty).

  3. 3" Cat Review!

    Posted by Unknown on

    Ordered this for my son's daily '93 S13. Installed easily within 20 minutes. Would recommend getting lock washers though. Worked like a charm and quieted down his dual 3" blast pipes a little. :-) Will order another for my other son's '95 S14 soon!

  4. Nice Cat!

    Posted by Ryan on

    I picked this up to put on my daily S14. Installed in minutes and comes with all required hardware and gaskets.

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