Quote:
Originally Posted by gbrettin
It seems like CAI is a big hoax. I'm pretty sure the engineers at Nissan calculated the air flow needed for this specific engine setup. Why wouldn't they use longer charge tubes if it offered better performance? I mean, this is a performance car after all.
I'm not trying to down anyone's mod btw. 5hp at top end rpm seems pretty minimal to me. Perhaps there is something I'm missing?
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Edit
I re-read. They claim 15hp gain. That's not too bad if it works.
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Part of the draw of CAI's is the sound. They sound better, because they're less restrictive.
The stock intakes are also long tubes btw, but they're designed with different purpose in mind. Not everything on a 370z screams performance, as with all sports cars. There are also part and tuning decisions made with reliability, fuel economy, or of course cheapness in mind.