2ZZ Exhaust Cam Sprocket with Micropolish

We take the OEM Exhaust sprocket, Part # 13523-0D010, and micropolish it. Through our racing experience we have found this to drastically reduce the wear of the part itself, as well as extend the life of the timing chain. In the pics below you can see an example of the wear on the teeth of the stock non-polished part, after being used in racing conditions.