Thanks abigsupermoto good to know, i've got a 2008 xt660x with stage 1 and 2 Dna's snorkel removed and delkevic exhausts, and kev's mods but it still surges so hopefully the pcv will sort it ( fingers crossed )
is there a map, link for my set-up on here?
Hope all goes well for you tuesday fella, let us know!
Thanks for info