moffett

I have a 97 v3 sti type r and it has a full 3'' system and downpipe. Problem is I think that its causing the car to over boost. Is there a cheap and simple way to controll this, ideally without a remap or a electronic boost controller as money is very tight at the minute.

I was thinking maybe a restrictor ring or could I try and source a standard downpipe?

cheers peeps

Slowboy Racing

Confirm what boost is being made, if it is spiking You can enlarge the restrictor pill to lower boost but be carefull to enlarge only a small amount, this can be found between the small boost/vacuum hose that runs from the compressor housing to the plastic tee piece. Alternatively you could fit a manual boost controller, I personally don't recommend the second option long term. You will also hit fuel cut if the spike is severe.