So finally checked all mine. 3/4 are perfect. 1 will be getting exchanged. Pretty sure it's been returned before too,had a different dealership tag and a previous UPS label directly on the box. They trying to push a flawed caliper on me. I'll be calling to get an exchange. Has a gash and two small paint chips.
https://cimg2.ibsrv.net/gimg/www.clu...4a050b05e4.jpg
https://cimg3.ibsrv.net/gimg/www.clu...da337bbf1b.jpg

if I remember correctly, mine only had that tape on it and not the plastic wrap

What's the verdict on stopping power switching over to both front & rear RCF calipers and larger rotors? Is there a noticeable improvement?

Also, I'm sorry I quickly went through the previous posts but didn't see a final answer, are the 2024 RC F rear calipers with electronic parking brake now working on the IS500?

After the replaced caliper, I had an issue with the slide pins. I think I’ve pointed out previously that one on each side is not protected by a proper boot. I had to take the pin out and clean off all the rust. I also used waterproof grease to try and keep the water out. I ended up disabling the EPB as I have not wanted to get stranded from a seized caliper.

I am doing wheel swap and brake maintenance next weekend so it’ll be my first time inspecting since.

unless they are revised I do not recommend them if you are in wet/humid or driving in winter.

otherwise, I’ve been using project mu ns-c pads with them and have been solid.

@TurkishRambo Were you able to disable the EPB from software settings? Or did you have to remove the entire 3rd caliper?

Thanks for the update.

I disabled it via TS.

this year is also shaping up to be similar to last year weather wise. To help mitigate the damp weather, particularly after driving/when being stored, I have a pretty powerful dehumidified and heater combined with garage insulation (to maintain a warm enough temp to ensure the dehumidifier will work)

I’ll report my findings after next week, my biggest concern is swelling of the rubber surrounding the slide pin. If the grease and rubber are in good shape I may re-enable the EPB again.

That is unfortunate. They should be revised and current customers should be taken care of.

Are you to a point of considering going back to stock?

Would having the pin made of a different material such as s/s or titanium fix that? Someone like Yperion titanium could easily make something to replace the current one.

-Nigel

not a terrible idea, I think I’ll see how the next inspection.

I don’t plan on removing this set, as a braking system they work great. I will likely go back to stock when I sell the car, but I plan to keep it as long as I can.

this is the post where I talk about the slide pin issue. One has a proper boot preventing water access but the other one is prone to the water entering and causing rust. Even if I applied brake silicone grease, the sliding of the caliper probably would have removed it and let water in anyways. If I should do something different I’m open to ideas, but I’m liking the idea of something water and salt resistant.

https://www.clublexus.com/forums/is-...l#post11665299

Appreciate you re-linking that. I was trying to find what it looked like again.

https://cimg0.ibsrv.net/gimg/www.clu...abbac19d2.jpeg


From your picture it definitely looks like this could be easily made/fabbed up. I love modding, but I think as I get older if mods then start to cause me to do more work/maintenance I get annoyed. The fact that this will prolly just rust again so you'd have to do the same crap to it would make me want to have it made in a metal that doesn't corrode or is extremely tolerant to salt/weather conditions..etc. The fact that this also seems like a safety concern only because if the caliper is seized that's an issue in my mind. If during the next inspection you do and it appears fine it might have been a fluke or just a really bad winter/salt use..lol. But if it's rusted as much as it was in your other picture, I'd be having a couple sets made (probably be cheaper per set rather than a one off, then you can sell them and recoup the money back) and replace the pins and not have to worry about them again.

-Nigel

Hello all,
I recently (few months ago) had my front calipers installed.

Driving home (spirited) tonight, as I was approaching my house, the brake pedal become extremely stiff, and the brakes did not want to co-operate.
It's important to note a few things here:
- The brakes could not have been hot enough to have failed
- The pedal did not hit the floor, but rather stayed at the midway point. It felt stiff, I probably could have pushed but I feared that would break something.
- Was slowing down from ~90mph (gradual, not extreme braking)
- I do not have upgraded brake lines or brake fluid
- Using rcF calipers / rotors & brembo front brake pads
I'm unsure what could have caused this, and frankly it was a bit scary with the thought of it happening when I really needed to slam the brakes.
Any individuals who know what could have caused this?

Yikes, that’s kind of frightening. Did you install the brakes or had a shop do them? Maybe air in the line? Might need to take it in to make sure they’re seated properly.

had a shop do them
I’m probably going to take it in to be checked

Sounds like ABS system went into ICE mode and it is terrifying. Waiting and trying again is only way. I have found the system to the same under harder braking and hitting a bump or uneven road.

Never hurts to double check.