The Power Stop K5828 Brake kit includes a complete set of cross-drilled and slotted rotors and high performance Evolution Sport Carbon Fiber/Ceramic pads.

Tried it and much better and it looks good ! I did the front ones and whenever the back ones wear out, they will be replaced as well

Did a complete detailing job and its resting on the driveway !

 

I have the same kit on our 2010 350. Love it. Unfortunately have had to use its full potential a few times but they seem to stop better than stock

 

Are you concerned about the possibility that the different coefficient of friction and fade resistance between the old versus new pads may result in accelerated wear on the now-highest-coefficient of friction pads (they may be the front or they may be the rear) -- and that you may have a different incipient wheel lock upon heavy braking on one axle than you did before you made the change?

 

Only time will tell regarding pad wear. As far as differential breaking, Ive not experienced it. In fact, the RX seems to stop better overall with these new pads/rotors (in front just like OP). In the several instances that I required panic stopping, once on wet road, there was no lockup or unintended change in direction as far as I could tell. Stopped nice and straight. Antilocks kicked in fine. Also, I'm not noticing any significant brake dust. So far pretty clean. I had doubted whether slotted rotors would do much on an SUV but it works well. No fade at all (and yes, crazy 65- 0 -65 mph stop and go in this town)

 

i installed the same kit (only front) on my 2008 IS250 this weekend, and i have noticed it made the petal feel longer and a bit harder to press. not sure why everything came off and back on like normal. i did the proper bedding as per the directions with the kit. im reading maybe i just need to break them in a bit more, or am i just feeling the difference of these low dust style pads? before i had OEM really dusty ones.

 

Letxen3 - You need to bleed your brakes. Those sound like symptoms of air introduced into the system during the pad change. It is not unusual for that to happen. If you bleed them you should get your old pedal feel back. It is a good idea and recommended by Toyota to bleed/flush the brake fluid every few years as brake fluid absorbs water which accelerates corrosion of very expensive brake components such as the electronic brake force distribution thing and your ABS system. Most shops will do this for about $100.

 

Those rotors do give the car a performance look.

 

Agreed on bleeding the brakes, if it is feeling harder to push/more pressure that is almost always why.

 

i have not gotten to bleeding the brakes since i was going to do it when i replace the rear pads and rotors. but funny thing is it starting to brake better. maybe it needed a few miles to break in and or it was the effect of mix of having new brakes on front and old in rear?

 

If you're thinking about bleeding your brakes please realize these newer cars, like my 2013 RX450h, have electronically controlled brakes. I learned the hard way that I couldn't bleed the brakes the old fashioned way (pump the pedal, open the bleeder valve, repeat). Some of us may have a simpler way but I ended up using the Techstream software to get the job done. If you don't have the Techstream software you might consider having someone else do it for you. If I'm preaching to the choir I apologize...my RX was down for about a week until I got all of the right pieces (laptop, software, cable) together to do the job.

 

Yes, one cannot bleed Toyota hybrid brakes like "regular" brakes in the rx350 or the IS 250. Sorry you had to find out the hard way.

 

I my experience, air in the system would produce "spongy pedal" feeling.
When I installed ceramic pads on the vehicles that came w/ semi-metallic OEM pads, that required more pressure on the pedal.

my2p

 

So a 2015 RX 350 brakes can be bled out the old fashion way using gravity?

 

Well yes, but you will not be bleeding the ABS system. That is why every other bleed I take it to a shop so they can hook up the Techstream software and activate the ABS when bleeding. At home I use a vacuum system as it is more effective than the old 2 person push the pedal way and only needs one person to operate.

 

"More effective"? How?
It's certainly simpler, but I don't see how it could be more effective. Am I missing something?