N75 race valve gains?

[coxyboy]

i will buy a J and see what happens
but ill wait until next month after its been mapped so i can see what it does to the boost!
thanks people

I tryed a 'H' valve and it caused boost surge so went straight back to the standard one

All the N75 valvs you want from here https://sslrelay.com/s74326199.onea...nid=15476d3ef07be1a/shopdata/index.shopscript

also i can only find the J valve on this website but no other one's??