I posted this in the DATW thread, but it seems just as relevant here:

We run a K&N in our personal D1 Disco (150k+ and still running strong) and we have never had to replace a MAF. Neither did the DATW Discos (D2) as far as I know. K&N produced some informational videos specifically around the MAF myth:

http://www.youtube.com/watch?v=UjwBiPm2W5Q

http://www.youtube.com/watch?v=_SPd1...eature=related

http://www.youtube.com/watch?v=HrU-s...eature=related

http://www.youtube.com/watch?v=Ml8OI...eature=related

-- DavidV

 

Totally different MAF's. The D1 can handle it just fine, but the Bosch is too sensitive.

 

Use your own judgement, but people have had MAF's die after putting one on. I wouldn't, if it was me. You wil actually get better fuel mileage with a paper filter. You are increaing your HP, but at the cost of your mileage with the K&N.. If it lets more air through, I would think more dirt would get through as well...

 

BIG DITTO!!!