Will do Edd, gonna pull it all down an fit the zisco ram mani and adjust the actuator, which way is less winding out or in?? ran it ok last year with no issues, only major change has been the exhaust through winter Cheers Matt, just dont know why it ran fine last year then this has now just raised its head, think its because of the exhaust flowing gases better, just need to drive with one eye on the guage an shift Put a fresh hose from turbo to actuator as i thought it may be the hdi controller, it will increase boost but not hold it back on the hdi unit, the actuator is an hks one that had been set to .9 before i fitted the boost controller an it's still doing the same. John