Not sure which 2004 Chevy Trailblazer Air Filters - Custom Fit is right for you? We have over 14143 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 purchased this filter for my 04' Chevy Trailblazer and so far it has improved the performance. My vehicle now maintains a lower RPM level when driving due to less air restriction and this has improved gas economy. Also when I need to punch it to get up to highway speeds the response is awesome. Only draw back was it was a bit pricey, at least $20 more than the K&N versions but I guess that's what you pay for quality and performance. I'd recommend this filter to friends and family for sure." —Aaron D from Cumming, GA bought a Green Air Filters for a 2004 Chevy Trailblazer, 4.2L 6-cyl. engine.