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futureal33 · Mar 17th, 2008, 03:22 PM

I heard the GTT stealth-cat messes up the MPG figures?? Can anyone comfirm this as its something I really fancy getting done but wouldnt be interested if I drops mpg figures by upto 10mpg as I have been informed!?!

Mar 17th, 2008, 03:22 PM	#4
futureal33 225bhp / 360 nm R56 T My Classifieds Join Date: Oct 2006 Location: Preston, Lancashire Local Time: 03:44 AM Posts: 332 Offline	I heard the GTT stealth-cat messes up the MPG figures?? Can anyone comfirm this as its something I really fancy getting done but wouldnt be interested if I drops mpg figures by upto 10mpg as I have been informed!?! Just bought a Mini Cooper S !!