can you explain these problems.had 2 erst s2 both with bailys twin piston dump valve driven in all sorts of conditions ie motorway off boost,up hill full boost ,light driving,hard driving and never ever had a single problem,the only problem you will have is being be called a chav,but i grew up dreaming of a rs turbo boosting then dumping it and thats why I have one,pretty sad really lol but its what makes you happy