Just had them put on my car tonight after my primcys went bad after 15,000 miles. Have to say...they are a tiny bit louder than the primcys....but that could be because the primacys had NO tread left on them...lol.. update: these are still on my car...but only until more primacys can get here next week...drove 80 miles on the tripo today...used 120 off the battery which for where I was driving for me is completely unheard of. Usually I'd be mile for mile in my primacys. Also on the highway the traction control was on several times, pavement was dry so this shouldnt have happened. Worst part was the burn outs I can do with traction control on...so...tried em...glad I did..will be even happier to get them off..