*vinj
Bro, the MAF sensor issue I'm not really 100% sold on, as it is hard to prove unless maybe we put it under a microscope. Can't swab it as it will damage the sensor. It most likely will not happen on correctly re-oiled filters. But the info on the link oj88 posted clearly shows K&N filters less particles. That info is also shown in the link I posted to the TDI Forum site. That increase in particles will show up most likely as increased silicates in used oil analysis. I don't think it will cause engine failure naman. Just accelerated wear probably. By how much I don't really know. For all we know it might not be appreciable through the natural lifespan of the engine. For me I guess if I will be keeping the car for hundreds of thousands of Km I wouldn't use it. But if I plan to sell the car while it is relatively young Km-wise, it is a good cost saving option.