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i saw that too, read some where that one way they work better but make a bit more noise than they would the other way....cant remember which way was which tho lolgirlie-racer said:BUT in a issue of total vauxhall mag ive got, they were doing a brake upgrade on an omega an they have their dics with the grooves pointing to the back of the car, which they say is the correct way according to a hi-spec rep.......
Reece said:sorry dont agree with any of that
if your cars kicking off that much brake dust that u have to channel it then theres something very wrong with your brake set up..i.e stupidly soft compund of brake pads .
the advantage of grooved brake discs is to disapate heat more effiecently as the surface area is increased and therefore it doesnt matter which way the grroves face other than for cosmetic reasons.. thats the way i was taught at uni