i just got a full 3" turbo back buscher exhuast i cranked it up let it warm up and took it down the road, when i got on it i noticed that the boost spiked to about 20-21 psi and then settled back down to about 15 psi. i know the computer will drop boost if it reconizes changes in airflow but my question is does it hurt for it to spike like that and also how would i fix both problems
thank
jay

by the way my car is completely stock otherwise

 

boost controller.

An MBC (at around $50) will get you started... before you move on to the electronic boost controller of your choice.

 

by the way spiking to 21psi during colder weather (like below 60) might get you the fuel-cut experience... I suggest you avoid it.

When I added my Buscher exhaust I gained like 4psi... 'grats on your new exhaust. I hope you like it as much I do.

 

thanks for the advise !

and thanks i already love it