thermostat is a new genuine part, its got full circulation as all the pipes are hot and i've tried bleeding the cooling system a few times but there are still small bubbles of air when you feel the upper matrix hose! trying a spare expansion cap today as i have a feeling that its not keeping system under pressure
I was going to get a dub force chip.... But after speaking to stealth racing, It's cheaper for me to send them my ECU, And they will put a custom map on it for cheaper. And personally I think the stealth map will be better.