hi all.. is their a common place that these crack? i have a noise as if exhaust blowing from round the manifold area but cannot see any cracks.. looked from underneath best i could but still no.. i fitted this baily turbo damper followed the instructions so i thought but maybe i got something wrong.. also whats the best way to remove it if its to be replaced as was a nightmare to fit it with the engine out of the car..? many thanks..