OE-Matched Discs:
Remy designs our discs to match OE form, fit and function. This includes weight and vane configuration. Why is it important that vanes and weight match OE? Because the weight and vanes of the OE disc were designed and manufactured to absorb and dissipate heat as efficiently as possible during brake cycles.
Lightweight Discs:
To cut corners and costs, some manufacturers of aftermarket discs sell lightweight discs. These discs often look the same as the OE discs. The diameter is the same and it will fit fine on your vehicle. However, if you take a closer look, you begin to spot some differences. Lightweight discs are lighter than the OE disc. This means the manufacturer cut corners in order to use fewer materials and save some money. Two common ways that lightweight discs cut corners are: 1.) The plate thickness is thinner on the lightweight disc. 2.) The vane configuration is different from OE.
Problems with Lightweight Discs:
Lightweight discs may be cheaper than OE-matched discs, however, there is a good chance that putting a lightweight disc on your car will cost you more money in the long run. Lightweight discs aren’t able to absorb and dissipate heat as efficiently as OE-matched discs. The result is that the heat is transferred to other areas of the brake system, including the brake pads, calipers, wheel hub assemblies and the hydraulic system/brake fluid. This can lead to issues such as premature brake pad wear, premature bearing wear and even complete brake failure.
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