bigger rotors for what? Better stopping? If so you need to change carriers to get bigger pads to match the rotors (A8 upgrade is the cheapest way to go). Otherwise you simply add weight to your car. Zimmermans for an A4 are spec stock size for an A4. Making them bigger does nothing unless you upgrade the brake pad surface.

 

i hate stupid questions

 

r u saying my question is stupid if so im gonna get pissed

 

And just whose question are you calling stupid?

 

i haven't installed them yet. i was wondering if i needed thes parts. the write up on aw doesn't mension them. the guy i bought them off of said they were spacers???.

thanks for the info. are they much better than stock/ crossdrilled /slotted stock ones?

 

i have the zimmerman drilled and can actually tell a difference witht them unlike replacing the the rotors with stock size drilled, drilled/slotted, or slotted rotors with aftermarket pads. next im probally gonna put the porshe calipers on em