Get the King Connecting Rod Bearings Set of 4, specifically sized at .026, designed for BMW S14B20, S14B23, and S14B25 engines. This high - quality set is a perfect fit for the 1988 - 1991 BMW M3 Base model, ensuring smooth engine operation.

Using these connecting rod bearings is straightforward. First, make sure your engine is turned off and cooled down. Then, carefully remove the old bearings from your BMW S14B20, S14B23, or S14B25 engine. Install the new King bearings in their place, ensuring they fit snugly. When it comes to maintenance, check the bearings regularly for any signs of wear or damage. If you notice any unusual noises from the engine, it might be a sign that the bearings need to be inspected. Always follow the manufacturer's guidelines for your BMW M3 Base engine. Avoid over - tightening the bearings during installation as this can cause damage. With proper use and maintenance, these bearings will keep your engine running smoothly for a long time.