You're right. There were actually 2 write ups on this already and I have both saved:

#1 With Pics: https://www.evolutionm.net/forums/sh...d.php?t=114931

#2 not as clear: https://www.evolutionm.net/forums/sh...ad.php?t=99137

But nice write up. This now makes 3 threads on the same thing, so there shouldn't be anymore questions on this.

 

Ok i got mine to fit....one fouler was really tight......Had to manipulate alittle to fit it. Also it looks like there isn't any sensoring room when the o2 is in the non fouler, snug fit but no tightness......should I grind down more non fouler wall? Someone if anyone can help please.....

Dante`

 

Just drill one out using a 1/5in bit and you will be fine

 

Discuss thread HERE