rfj62
SILVER Star
Hey guys, I was wondering if anyone has any experiance with a K&N cold air intake http://www.performancecenter.com/pr.../0/Toyota/1999/Landcruiser/4.7L?brandname=K&N or a throttle body spacer such as this http://www.performanceproducts4trucks.com/productpage.aspx?cid=17&sid=246&pid=109060? I was looking more for a gain in MPG then a power gain but if I understand correctly an increase in air flow will result in more power, which will result in less gas to get the tank moving. Another question, are there 2 oxygen sensors for each down pipe/cat coverter, 1 before and after the cat (4 total) or just 1 oxygen sensor on each side (2 total)? Any thoughs would be appreciated. jeff