Rotors worn down below the recommended thickness will cause vibration in your steering feel and possibly even fading. You should have just told them thanks and drove out. The entire set of upgraded rotors (slotted & drilled) with Hawk pads are not going to cost $700-800. It's not a bad DYI to do either. Hit up Michael at Acute again and get a quote. Also, your i-drive after the reset should read 30,000 miles or plus. You can do that yourself too.

 

At this time I just had him install the front pads. Will it wear down the front rotors more? Will it error out again on the iDrive? If it gets loud again, I'll break down and get front pads again and the slot\drilled rotors.

If the OEM front rotors are good, will the Hawk pads wear them down faster than OEM pads?
How does OEM pads with OEM rotors compare with Hawk pads with aftermarket slotted\drilled rotors as far as wear?

 

Hi Balbs,

Yes pads wear down your rotors, do the Hawks wear them down more than OEM? Yes because you're using a harder compound to get less dust. Ceramics will wear rotors down even faster.

Harder compound = less dust = less stopping power = harder on your rotors
Softer compound = more dust = more stopping power = softer on your rotors

Okay so it's not that linear because it also depends on brake compound/mixture but you get the gist.

You're worrying to much about rotor wear, your mechanic has instilled fear in you.

As for the noise, please please please please please for the love of please bed them in properly. If you don't, it'll be squeaky, cause premature rotor wear, and affect the stopping distance.

Michael
Acute Performance

 

I'm not sure what John at the M shop was referring to, but I'd have to disagree about the Hawks being noisy unless they weren't bedded properly (or at all?). My OEM pads weren't noisy though... but the braking performance is definitely there with the Hawks and I have DEFINITELY noticed there is less brake dust... trust me, cleaning mesh wheels is not fun...

Hopefully someone with aftermarket pads and rotors can chime in regarding the life expectancy and performance. Though the M shop has a good reputation, I would definitely get a 2nd opinion on this one.

 

Really? I feel the brakes are more responsive with the Hawks though.

 

you missed my edit

 

+100 I guess

When I went back to the shop, they were closing up the car and went for a spin. They were back within 15 min. and said that the brakes were still noisy. I then drove the car, noticed the noise, did the HAWK bed method for about 30 min. I had a hard time trying to find a place to accelerate to 40 and even 60 fast enough and a road long enough to do the stop and go properly. In the end it was alot quieter. I could hear some squeak, but not as bad as when I got the car back from them and definitely alot quieter than yesterday. I don't think they bed them long enough or properly. I guess the squeak left over is from the slight undersize of the rotors.



I sure will! And if the offer still stands with John and Jason I'll take it

 

R1 Concepts rotors next?

 

Speaking of which, John,
How's your schedule looking like this weekend? Shall we give it go with those control arms?

 

Since I just placed the new front pads today, would it be okay to use them on new rotors if I get them soon?