GR Yaris One Piece Cast Iron Rotors?????

GRYarisRALLYE

GRYarisRALLYE

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I came across Project Mu, SCR Brake Discs. They look good, seem to be durable which is what I'm looking for..... plus way cheaper than a lot of other aftermarket options.

2 things.... can't find any reviews of people using them on GRY and they're heavier by 2kg for each front rotor.

Does anyone have any experience with them? Open to suggestions otherwise.

Specs below

Brand: Project Mu
Product: SCR Brake Rotor Set Front - GR Yaris GXPA16
Part Num: SCRT020

SPECIFICATIONS:
Application: Front Brakes
Structure: 1 Piece
Included: Left and Right
Slits: Straight/Eight slits per side; sixteen on both sides
Material: disc: High-alloy FC cast iron
Weight (kg):
-OEM: 10.06
-Project Mu: 12.20

COMPATIBILITY NOTES:
Vehicles equipped with 356mm diameter rotors

image_2026-09-23_145648150.webp
 
Tarox are fairly popular aftermarket rotors. Others on this forum are way more knowledgable than me engineering wise but I imagine that from a handling perspective, 2kg more of rotational mass on the rotors alone is a lot more inertia/harder to turn with (and stop), so could be a nightmare.
 
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