Does the X5M brakes fit to X5 4.8i?
 

Hy guys

Sorry if this has already been discussed, but on the 4th of May my car is scheduled to regular service check-up and i would like to order front & rear X5M brakes. Do you think is a straight swap?

My car is a '08 X5 4.8i. I think they should fit straight:dunno:

Thanks

Better make sure you have 20"+ wheels because the front rotors are HUGE. How much is the full conversion of rotors, calipers, brackets, etc? Probably cheaper to buy a brembo GT setup.

I have 20" wheels. Front rotors are 395mm, and rears 385mm. Big size !! :D I would like the X5M brakes because i can keep the pad wearing sensor and i like them over the Brembo's

X5M Brakes on 4.8i
 

Did you do the brake upgrade to the M brakes?
If so, how much did it cost and are you happy with the result?

Thanks.

There is no way that your rotors are 395mm & 385mm rears on your current X5 unless its a X5M. The rotors on a V8 X5 are 365mm fronts & 345mm rears.

You will need rotors & caliper off a X5M to make it work, unless your statement is just phrased wrong!

I know this is an old thread..... But I can never understand why people want to upgrade brakes on theses vehicles.
The stock systems are MORE than adequate for the power they have.
If its look and Brembos... Ok. You have some money burning a hole in your pocket. Otherwise.....:dunno:
I guess, to each their own.

Interesting thread.

Back in the day, race teams went to lower profile tires and bigger rims- ALL to get bigger brakes under the rim.

People saw this design feature on cars, and pretty soon everyone was upsizing rims- the bigger the better- with ZERO interest in WHY.

So went I see someone wanting to fill the wheel up with brakes, go for it. Better than stupid puny rotors sitting in huge rims.

A

Race teams also did it to get a bigger contact patch.

Has anyone done this yet? I'm interested in the total cost.

??

I've always thought that contact patch was diameter and width. PROFILE doesnt impact patch statically. Yes, going to wider rims REQUIRES lower profiles to maintain the overall diameter. But a 29" outer diameter wheel that is 10" of tread width on an 18" rim with 50 profile will be the same contact patch (more or less) when compared to a 29" outer diameter on a 22" rim with the same 10" tread width and now a 25 profile. (So just chaning sidewall height will not increase patch.)

Dynamically, lower profile tires will HURT the contact patch.