Just like drilled discs, slotted discs were invented to further reduce the impact of brake fading.
Drilled slotted and vented brake rotors.
They dissipate heat better and don’t warp or fade as much as solid rotors.
These slots, or grooves, do not go the whole way through the rotor, so they do not affect the structural integrity like drilling does.
Which brake rotor is best?
When you factor in the consequences of decreased surface area and possible stress fractures, they begin to make less sense from a performance viewpoint.
Another important advantage to using drilled and slotted discs is the constant renewal of the pad friction material.
Brake rotor coating is designed to disappear in the area that the brake pads contact the rotor.
The drilled only and slotted only rotors tend to have significant differences, which are combined in the drilled and slotted rotors to help boost their functionality significantly.
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When replacing your brake rotors, you may opt to upgrade to drilled, slotted, or vented rotors.
These channels serve several purposes.
This is why high end bmw, porsche, corvette, and mercedes rotors are drilled, not slotted.
However, for track racing (high speed stops), slotted rotors are the better choice.
R1 concepts blanc replacement rotors are not drilled or slotted, but offer equal quality as your oem rotors but at an affordable price.
Given the choice between drill holes and slots, the drill holes will give you better braking power over slots for normal city/highway driving.
Your brake rotors will last longer, cost you less, and ensure your vehicle's safety for thousands of miles to come.
You have a performance car.
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The substantial improvement in braking you will feel and the warranty that is included with every performance drilled and slotted brake rotor, is worth the upgrade over stock replacement rotors.