Hi
I know it's gonna sound like a stupid question but I couldn't figure out the outcome unless I ask.

My cars tuned on 7lbs at the moment so what if I were to put in a different waste gate spring like 3lbs or anything lower than 7lbs?
Would that affect the tune in anyway like leaner or richer etc?
Thanks

 

If it was professionally tuned then it should be tuned up to 7psi so it should be fine if you lower it.

 

Cool thanks