Brembo discs - what's the difference?

[rbhynes]

Evening all. Just been looking at replacement front brake discs & it looks like a fair option for the 2006 3.0si is the 325mm Brembos, however having looked at them there appears to be 2 options - the only difference I can find is £100.... Anyone any ideas?
http://www.nextdaybrakes.com/info-p...ts&engine=3.0000&year=2006&search=Part+Number

 

[Bing]

The more expensive discs say 'wet weather'... But I have no idea why that would make them £100 more / more than twice the price of the first set :?

 

[bigdog]

Generally speaking. A wet weather disc has either holes drilled through them. Or grooves cut in them. Thus allowing water to escape. The extra machining adds to the cost. Like a lot of mods though. For every day street use one really doesn't need the slotted disc's. The wet weather disc's will start working a fraction of a second quicker when wet. Of course if one is doing 150MPH in the rain. That fraction of a second adds up to a fair distance.

 

[Mister_dj]

for roughly the price of the brembo max (the wet weather ones I can see in your link) you can get BMW performance drilled discs - part numbers 34112282871 and 34112282872

http://www.cooper-bmw-parts.co.uk/b...88/brakes_1289/drilled-brake-disk_106533.html

But given the cost difference you are probably better off with blank discs. The Z4 already has a system that prevents water from acumulating in the discs when its raining.

 

[rbhynes]

Cheers guys, I think the standard £75 discs are the way to go, £100 extra just doesn't add up in my book.