i fitted my pro alloy front mount 12 months ago and have been running the same boost 16 psi as when i had my pace uprated intercooler. Going to take the s1 for a set up next month and was going to try and run 18psi but after reading a few bad things about the pro alloy coolers are my acts going to go through the roof. any advise form people running these coolers on their s1s would be much appreciated.