running compbrake 6 pots on mine and never had a issue yet, they have no anti rattle but so far this hasn't been a issue, my only problem is it nose dives too much now under heavy breaking so i need to uprate the back ones (which will be this winter)..........i have them on a road car so more than enough for me and i'm happy with them and the price, they also fitted behind my rb5 wheels and the brembos didn't.....