well, that's kinda harsh and uncalled for. I am a dealer of INJEN and also had a fujita installed for comparison. I had a CEL about two days after the fujita install but once we reset the pcm it never returned after 2-3 weeks of driving. Performance wise I prefer the Injen CAI, and no, the hydroshield DOES NOT take away any gains from the CAI system....just protects the filter. I've had my CAI on for a few months, in NJ, and drove through rain, 3" deep puddles, mud run off...and NEVER hydrolocked my motor..
lol i enjoy how so many people argue with me about this but either way my intake is sucking in nice hot air i live in south florida and it is never cold here an we raced the fujita verses injen and the fuita just beat it