Hypoxia and Medicine

Are auto modifications such as plenums, air intake systems, K&N filters, etc effective at high altitudes?

I have an 03' 350z and considering plenum spacer, will this be a good modification for high altitude driving (7200ft)? I have always heard that air density dramatically decreases. About 3% horsepower loss every 1000 ft. With less air density will this mod be effective? Wish I could afford turbo!

Public Comments

1. yeah as i read your question i was like this person needs a turbo or a supercharger. any thing you do that will increase performance at sea level would increase it at altitude as well but will it make enough difference to justify the expense? I don't know. good luck do some time trials before and after if you decide to go forward. that is the real test.
2. Your fuel injection is you best friend because it will adjust for perfect air/fuel mixtures . We drove our vehicle with a carburetor from 7000 ft from Colorado and it had no power on the hills .