zerophat

Does anyone know factory rotor weight is on the 2008 v8 4.2? I thought that the brakes rotors were different between the engine variants.

TJK

I know you said weight, but do you mean rotor thickness?

Jusforfun

Its the same for all models except the V12 TDI

zerophat

Was looking at replacement, lighter than stock, but don't know what to compare?

docman_md

Mine just reached 30K miles. I replaced all four rotors with StopTech Slotted (http://shop.achtuning.com/StopTech-1...s-Audi-Q7.aspx) and pads with Carbotech Bobcat. Better grip, no squeal, and no dust. Highly recommend this to anyone considering/needing to change rotors and pads.

GRNMACHINE

docman,

Do u know where the rotors/pads were manufactured?

docman_md

StopTech is based in California and they do manufactured from there. They produce several of the big brake kits for Audi. Check their website (www.stoptech.com)

CarboTech is based in North Carolina. They also manufacture from there. I was weighing on Hawk LTS pads but the tuning shop here in Maryland recommended Carbotech Bobcat series. www.ctbrakes.com

I love this set up so much i am thinking about doing the same for my A4.

Jusforfun

and they look so cool

zerophat

So, lighter, same, heavier than the stock rotors?

Reggie

Just so you understand. Reducing the weight gives you better unsprung weight which helps handling but in a car the size of the Q7 you loose the ability to absorb heat in braking - going to a lighter disc can impact heavy use of the brakes in mountains and hard driving unless one makes up for it with a bigger diameter rotor and better pads.