[Help] Trying to identify aftermarket calipers on my 05 G35C

[PT]

I bought this car recently, so it's new to me. I am also a novice when it comes to car mechanics and aftermarket applications.

It's a 05 G35 Coupe with 20" after market rims and caliper/rotor upgrades.

I'm trying to identify what caliper have been used as they are obviously aftermarket however not so obvious as being a name brand performance system.

The installed calipers look to be a OEM installation (Definitely not Brembo, Bear) as they bear not obvious product name/brand stamped on them.

The dealer, when I inquired, shows that the stock calipers would be a single piston setup whereas what I have are dual piston.

My goal here is to replace the brake pads with PFC Carbon Metallic pad for an upcoming Driver Education / Track day. I ordered these pads based on the car type ... and during my attempted installation they were noticeably to small for my application.

Inspecting the Calipers I can see these markeings:

A stamped / white painted "K"A Etched T3 L on the top of the caliperA Stamped/forged 530 on the top of the caliper.

Due to the similarity with the 350Z platform a friend suggested these may be from an application of a performance or track brake package for that car?

.... ANY assistance is greatly appreciated.I'm hoping to learn ...

Is there a model number on the caliper somewhere I can use to cross-reference, or reverse lookup it's compatible applications?

Is there a (hopefully) short list of Dual Piston applications for the 350Z and G35 platforms that I can use to compare pads from?

Is there a good online resource (i.e. good online part reseller with a large inventory) for me to better research these parts.

I can provide photographs of my application, if that will help someone visually recognize parts...

[JeromeS13]

Pictures would be a great help.

However, 05+ G35 (excluding X Sedan) have two-piston front calipers. The previous owner may have just painted them.

Get us pics and we'll be able to tell you exactly.

[2dmfst]

I am having the exact same problem. My rotors are 12.6IN diameter of which I was finally able to find. the pads that I keep getting are to small for the caliper. My caliper is also a duel piston which looks completely OEM. When I look up parts for my 05 coupe, everything points to it having a 11.6in diameter rotor and the smaller pads. I did not take pictures of the pads. Tomorrow I will be taking this car to the infiniti dealership to try and figure this out but I would rather not have to do that if I can get my answers from here first.

[JeromeS13]

When looking for brake parts for the 05+ G35, have them search under 2006+ Nissan 350Z (non-Brembo). They're the same setup.

[Focusedintntions]

yeah i have a dual piston setup on mine and i know they're stock....just painted them up nicely this weekend..

[2dmfst]

I just put the 06 350z brake pads on my 05 g35 coupe. Thank you very much for this info. So whats the deal with this and why do part stores not know about this?Now, about that road noise... It sounds like the bearings are going out but at 54K? way to early for a easily driven car.

[awdjdmtalon]

Check the front tires. G's are known for having terrible alignment issues. My bet it that the toe is out on the alignment. And that the inner edges of the tires are feathered. That will cause the bearing noise that you hear.

[2dmfst]

tires look great. Outsides have some extra wear but I attribute that to me loving to take corners fast. It's pretty damn loud. It's almost embarasing