Hello I have ls4 brakes on the way with rotors. The only thing I am unsure of is the use of rcas. Should I just order some or wait and see if the brakes will fit with out them first? From what I've gathered from searching, it varies from wheel to wheel. I have 17x9 + 35 all the way around. If I have overlooked something in my search I'm sorry. Any input can be helpful thank you

 

I believe the issue is the contact between the caliper and the bolt the goes through to the section holding the ball joint on.

You can shave some of the bolt and caliper down but I'd prefer to use an RCA set. There is a few threads on this, I think there's a sticky at the top of this section?

 

^yep. sticky. get rca's.

 

Oh I understand now. Thank you