I have a 2003 wrx with a up & down pipe and intake and my car spikes to 16 and 17 pounds of boost if i get a set of headers and a catback will i gain more boost and will it be safe

 

Adding exhaust parts should in no way modify boost levels. The only thing that modifies boost is a boost controler, engine management, etc... If your boost is erratically spiking beyond stock levels without you adjusting it, that means that you have a problem. I have heard of certain pipes causing boost spikes so you may want to look in to something different. Which exhaust do you have?

Thanks,
Jackie
Annapolis Suby
443-837-1422

 

first off, how are you reading boost? second are you the only owner of the car? My car was boosting a bunch, then I found out the previous owner had tuned it.