Review: The Truth Behind Sy-Klone’s Snorkel Pre-Filter. Thousands of dusty miles and dyno time tell us whether your 4x4 needs this snorkel pre-filter.

4x4 Snorkel Tech. Easy Intake Protection. Ali Mansour Writer Mar 01, 2008. See All 31 Photos. See All 31 Photos. Let's go for a swim! Ok, maybe more of a wade.