K&N PF-1000 Filter: Surprising Protection For GM Trucks Compared We were intrigued by the K&N PF-1000 when we saw its compatibility with our 1982-2013 GM trucks. The promise of high-performance filtration for gasoline engines caught our attention. After installing it, we were impressed by how seamlessly it integrates while offering superior protection. The build quality feels robust, and the multi-layers of filtration genuinely capture contaminants without restricting flow. What surprised us most was the versatility—the filter performs as well on older models as it does on newer vehicles, making it a great choice for vintage and modern GM trucks alike. It’s rare to find a product that balances compatibility, performance, and value so well. We appreciate K&N’s commitment to high-quality engine care, and so far, the PF-1000 delivers.