mikeCsix

Anyone know if the XP8's squeal as much as the XP10's when cold while driving on the street? The 10's sound like a train coming into a station, at least I know they are working! I have 10's on the front and 8's in the rears but thinking of picking up a set of 8's for the front for track season if they don't squeal as much. The ceramic Bobcats work great for the rest of the year.

db2xpert

Ran them on the street. Would squeal sometimes, not all the time.
Didn't think it was that bad.

Dan H.

This is my experience with the 10's. I put them in before an event, using them to drive to my inspection and to the track. I'd say the dust is the bigger problem.

UstaB-GS549

Take the leading edges of the pads and grind a small bevel on the edge. Takes a few seconds per pad.

mikeCsix

Thanks for the input guys!

mike

hungryhippo

My tried xp8's going from the xp10 and they squeeled a lot less. I noticed that the way these pads are bedded affects their noise level. I still don't bed them properly.

Adam@Amp'dAutosport.com

They will make noise but not like the 10 I suggest getting them pre bed.

JeremyGSU

I would not run XP8's in the front for a track day. I would run 10's minimum, possibly 12's.

I tried using 8's as solely a street pad and I couldn't take it. They made too much noise. I ended up putting on the 1521's for the street.

Socko

I have the same experience as everyone else, I run a 10/8 setup on track and have run it on the street and run just the rear 8's after swapping the front for 1521. Outside of the bias being odd for a bit after swaping just the fronts its pretty bareable.

The 8's imo make more of a standard brake squeel on and off, but fairly often once you get through the track day transfer layer. The 10's make the dump/garbage truck squeel thats crazy loud and fairly annoying.

So the 8's are more liveable, but they aren't really dd street pads. still pretty messy and don't make the light brown dust that the 1521 does.Wheels get black pretty fast, I jsut don't clean them anymore!

What pads you run on track is 75% a function of how hard you plan to push. 25% a function of what tires you are running. If you are on street tires 8's will work, if you are slow 8's will be more then enough. If you push the car to within 3-5% of its capable lap times, then yeah 10's or 12's for street tires in the front at least. More pad if you have more tire. There are people in these forums getting away with terrible pads that would kill me or add 10 seconds to my lap times. I know this cause i ran stock c5z pads once just to test what I have read on here, and they are SLOW. But people will say they work, and they do, if you don't mind running slow.