Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Works with my 04 civic si
Review: I bought it for primary O2 sensor replacement, for my 2004 civic si. Even though amazon chart doesn't list it as compatible with my car, it works well for ep3 and rsx (did some research before I bought it). And since the majority of sensors on my car are Denso, I'll stick with Denso. I didn't notice the power increase (I guess my original O2 wasn't completely dead yet), but I noticed a better gas mileage and quicker response to accelerator pedal. Amazon has the best price as allway. My original sensor had markings DU2 DENSO 192400-1080 11E05 JAPAN.
