18-07-2013, 10:25 PM
Hi all ive had my turbo derv for about 5 months now, and from what I could remember the turbo never made a noise. The only thing i have done to the car since is remove the standard inlet setup and shorthand the piping to stick one of them aftermarket air filters on. Well for the last 4 weeks or so all i can here now is the whistling from the turbo! After it gets past 7psi it realy go's for it, sounds pretty epic when accelerating with your windows down in a narrow country lane. There no smoke and is still boosting to 12psi, the car hasn't been tuned yet. Apart from the air filter and my FMIC, its a early model so has the decat pipe on it. Any suggestions?