the snorkel pulls out from the top..mine was hard so after I removed the air filter(on my R) I used a hairdryer to warm the rubber.

RE stage 1 +2 the filters are different on the R and X the Z uses these..

https://www.dnafilters.com/en/produc...DNA-Air-Filter https://www.dnafilters.com/en/produc...er-Stage-2-(S2) https://www.dnafilters.com/en/produc...rt-Stage-1-(S1
https://www.dnafilters.com/en/produc...er-Stage-2-(S2)
https://www.dnafilters.com/en/produc...-S2-and-Filter

There's four links which appear seperate when Im typing them BUT dont appear that way in the post.