I'll be putting mine in next week some time. So i'll report back to let you know what i think.
Just received and installed the K & N Air Filter & it fitted in perfectly. I'll let you know how it performs after i get it back tomorrow from the Nissan 30000km service.
Hey Craig and others
Have you noticed any difference with the new air filter? Economy, power, torque? I have read a few people have them and feel they improve their system but most posts are a bit vague. What have you actually noticed after you installed the new part?
Date Registered: 02-2004 Location: SUTHERLAND, SYDNEY TOTAL POSTS:29088
Re: T31 Diesel K&N Air Filter Nick,
The main benefit of fitting a K&N filter is saving money in the long run by not having to replace filters ever again and by saving on the cost of servicing as the dealer won't have to touch the air filter again.
It does provide extra air-flow to the engine, but not to enough to claim "measurable" power and/or torque gains.