like to buy a boost controller anybody got one?

 

What sort, for what model year?

Have you considered a Dawes MBC www.dawesdevices.com UK stockist www.performanceexhausts.net if setup properly is as good as many EBCs and only costs £35.

 

i need a digital one

 

HKS, Blitz or any other for Subaru WRX Sti 94

 

I presume you have some way of measuring injector duty cycle, lambda, knock correction or knock when setting it up. Only the Apexi AVC-R and HKS EVC Pro will allow you to change your boost curve by RPM. This could be vital on your car with a big turbo otherwise you will be stuck with possibly higher boost at the top end than you want, to enable you to run a higher level in the midrange. If you have no way of adjusting ignition timing you could also be in trouble as the airflow will increase with a boost controller if you increase boost and you will end up on the last column of the ignition map. This will continue an arguably over-advanced ignition timing (they are enthusiastic anyway on the standard map hence the preference for high octane) and detonation is a real possibility. Sorry if this is interfering and you have considered all this, but a lot of people don't and pay the consequences. Perhaps you already have a system for doing this - eg Unichip or Link.