Is SNG a Good O2 Sensor?

[MyTrix]

I'm going to go after my chronic P0420 code by replacing the O2 sensors first. PartsGeek has the sensors for my '03 XR for $59.75 each (apparently they are the same part number before and after the cat).
Does SNG make a good sensor or should I spend the extra $30 each for bosch/Denso? Here are the item descriptions:



SNG Oxygen Sensor
Retail Price: $149.67
Your Price: $58.75
Quantity:



Part Number: W0133-1843749
Notes: After Cat
Product Remark: 1
Availability: In Stock

Shipping Options:
Ground, Overnight, 2 Day


This Product Fits the Following: Catalog: Replacement Vehicle Sub Model Body Engine •
2003 Toyota Matrix FWD ZZE132 1.8L 4 Cyl 1ZZFE



SNG Oxygen Sensor
Retail Price: $132.88
Your Price: $58.75
Quantity:



Part Number: W0133-1843749
Notes: Before Cat
Product Remark: 1
Availability: In Stock

Shipping Options:
Ground, Overnight, 2 Day


This Product Fits the Following: Catalog: Replacement Vehicle Sub Model Body Engine •
2003 Toyota Matrix FWD ZZE132 1.8L 4 Cyl 1ZZFE

[fishexpo101]

My experience have consistently showed that sticking with a Denso sensor will pay off in the long run. If you plan on dumping the car right after you fix it, then cheaper sensor is the way to go. Bosch and other aftermarket sensors work similarly to the OEM Denso sensor in principle, but I've found that the is a great chance for impedance mismatch between the sensor and the ECM - so that car can get confused. This may lead to early sensor failure, poor fuel economy, and poor drivability.

[MyTrix]

Thanks for the informative reply.

My trix has 'only' 89K and I plan to drive it until it reverts back to nature, so I will drop the coin for Denso. A good sensor or two may avert the need to buy a new cat as well.