
Originally Posted by
Noisy
A bit to sexy for a d2 isn't it. I have had sports cars with less attractive brakes.
"Sexy" just equals "really functional" for an engineer 
My two-bob's is that slotted rotors work so much better than plain ones that they should be standard fit. Granted your pad wear will likely be slightly faster (in some odd circumstances it can go the other way, but generally you'll eat the pads a little bit faster). And they can create a slight whirring noise under braking (especially straight slots that are near-radial) depending on the design of the slots - the more established brands tend to be near-silent. But the added fade-resistance (out-gassing), pad bite (cleaner surface and reduced surface area), clearing, and stone-ejection (refer below) easily make up for this IMHO. For off-roading it's not uncommon to get a stone stuck in a pad which then noisily grinds a ragged groove into your disc, rendering it potentially throw-away. That can't happen with slots as they grab the embedded stone and spit it out or crunch it up. Equally you don't need to worry after a river-crossing or after driving in very heavy rain as the pads will bite through whatever is coating the disc (water, mud, *other*) within a revolution and brake normally.
If you've never tried them, please consider them next time you need new discs. But never, ever cross-drilling, and always have the slots sweeping 'backwards' so they self-clear by wiping the pad from inside to outside...
DiscoClax
'94 D1 3dr Aegean Blue - 300ci stroker RV8, 4HP24 & Compushift, usual bar-work, various APT gear, 235/85 M/Ts, 3deg arms, Detroit lockers, $$$$, etc.
'08 RRS TDV8 Rimini Red - 285/60R18 Falken AT3Ws, Rock slider-steps, APT full under-protection, Mitch Hitch, Tradesman rack, Traxide DBS, Gap IID
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