Mines ecus will be pointless, they are really basic re-maps.
Nismo rom controls SC in a totally different way. The AUS board for the ST I developed with the company, its not fully tested yet and is missing important functions. Mines rom etc for the ST is not worth it imo.
Boost leak is more likely, from memory they're fairly prone due to all the plumbing.Thanks James My superturbo is spluttering at high revs , could it be the ecu?
http://www.easyauctionjapan.com/productdetail.php?productId=g128746098I think im just gonna have to chase all the boost pipes and replace them