Not sure which 1992 Lexus LS 400 Spark Plugs are right for you? We have over 146 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"I installed 8 of these myself in an older Lexus LS, and on paper I reduced my emissions by about 50%. I didn't believe it, but there you go. I had it tested before and after in Arizona. My car was amazingly built in the first place, but somehow got even smoother after putting these pulse plugs in. I don't know about longevity yet as I haven't aged enough. Highly recommended so far." —Logan B from Phoenix, AZ bought a Pulstar Eco-MPG Series Spark Plugs for a 1992 Lexus LS 400, 4.0L V8.