From an experienced Perth-WRX member ask your tuner about the CEL being thrown and the associatedboost spikes.
10 at WOT is not ideal but again ask your tuner why this is?

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Funny looking German Subaru

I have spoken to Mao, he said my 3port solinoid maxed out and recommend a EBC. I just want a second opinion before paying for a EBC.

Edit: would a aftermarket actuator help?

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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR

Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport

*Cough crap tune cough*

Sounds like your engine could have seen the best of its life if its using that much oil. Get rid of the AOS, hook up the catchcan propperly.

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Huge range of extinguisher brackets for cars!

http://kap.industries/

Isn't the first won't be the last but people keep going back....

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Bitches love cardigans

Compression test and leak down test turns out good, and has AOS and catch can already. Just changed to Penrite, waiting to c the result

U mean vent to atmosphere catch can?

Car drove fine on the track, we all had good and bad experience, didn't we?

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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR

Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport

start saving for rebuild...after all...we all had good and bad experiences right

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Funny looking German Subaru

Yes, definitely. but I just wanna know how to solve the boost creep problem.

Anyone one tried aftermarket actuator, ie blitz, hks?

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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR

Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport

Fair few Perth-WRX people run tunes well into the 12.0AFR's.

Again, depends on how comfortable and competent the tuner is in the first place.

Drowning timing with fuel just to keep it happy seems a little backwards. Easier to just reduce timing or reduce boost.

Maybe post up the tune for some criticism?

Fixing the "creep" issue usually involves turning down the PID control and not going overly crazy with initial and max wastegate duty cycles. (Something your tuner should be able to do and understand.. one would hope)

I have used the Grimspeed 3port boost solenoid for 2 years now and have no issues with boost spikes.

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Funny looking German Subaru

For me i use a cheapo AC Delco solenoid off an F6 Typhoon.. works fine once you work out the correct PID and wastegate settings.

best 25bucks i ever spent.