Originally Posted by notoriousB

yup, we did this for a grand total of $3.99+tax i believe!

get this "help" part at your local parts store: 18mm defouler - comes in a pack of 2

here's the package and the two defoulers screwed together


i drilled out the bottom of one with a 1/2 inch drill bit - go slow, use lots of oil, it's thick

i don't have any pictures of the one drilled out alone, but here's two pics of the final product, one from the bottom one from the top. in the second pic you can see how it was drilled. the drilliing is done to be able to fit the o2 sensor thru the 1st defouler.





final product all installed, and skabone confirms "it works!!"



had to persuade the heatshield slightly to clear the new longer o2 sensor but that's no problem.