what is the purpose of upgrading the valve. i have done the search and i can only find what one to buy. i guessit would be the n75j. im still not sure on exactly the valve does. if someone could explain that would be great.!!!

 

need input!!

 

its an upgrade for the stock wastegate valve. it can hold 1-3 more psi of boost and gets rid of boost spiking

 

It's well worth it in my opinion.