If they’re readily available? Dixcel is for us the perfect blend of track/street usage. Dixcel S, or Dixcel Z if you can live with the little squeak.
Tune is pointless for NA in terms of power figures you'll feel the difference a bit but power wise you won't make enough to justify the cost, upgrade the brakes tbh, you get good options from dixcel.
Dixcel M-Type are the least dusty street pad I've ever used. A little pricey and straight from Japan, but they aren't kidding when they advertise "ultra low dust". Have about 1500 miles on them so far and they're great on the street and for the occasional togue/mountain days.
Dump the OEM pads. I went Dixcel in my M3 and the thing stops better and there’s so much less dust. Traded off is squeal at higher brake temps.
I have always ran DIXCEL Z on all my cars. Extremely quiet once you bed them in and has a temp range of 0-850°C with a friction coefficient of 0.67. They're just a bit dusty.
personally i run dixcel z-type pads and a stock rotor with DOT4 fluid and its one of the best upgrade options IMO
These are the best double duty brake pad I have tested so far. I have tried stoptech 309 and EBC blue ndx which will start to fade around 4-5 laps at my local track. The dixcel pads I can not get them to fade at all. Pad life seems okay with mix use but street manners are abit worst than the stoptech and EBC (sometimes squeals and dust alot).
For brakes, you're limited to whatever you can fit with your wheels.. I doubt you'd fit Brembo's with them, so you may be limited to 4pot/2pot or just rebuilding your current calipers with good street pads and rotors.
On my WRX, I use Dixcel ES pads front and rear
Upgraded rotors (paragon 2 piece) and dixcel type z pads.
Dixcel m pads good stopping and ultra low dust.
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