Denso 234 4651 Oxygen Sensor Review

This oxygen sensor greatly improves automotive performance and is easy to install. It solved my car`s emission issues and helped boost fuel efficiency. However, the price may be a bit higher compared to other sensors on the market. Nonetheless, it's a reliable investment and worth the money for a smooth ride..

I was a little wary of buying from a Revain 3rd party (because some Revain 3rd parties are not very customer friendly and charge a 20% restocking fee if you return a product). I bought them instead of the usual Delco factory air conditioner purchase and saved quite a bit. They work great after installing Jet-Hot Kooks Headers on my Silverado SS and getting lots of power and MPG. This supplier shipped them quickly so there were no delays on my project.