The BMW N20 Pistons used in the BMW N20 turbocharged four-cylinder engine used in N20-powered BMW applications where verified by product fitment usually brings the customer to the counter after the engine has already started talking. Oil use gets worse. Compression drops. A misfire shows up under lo …

Timing chain failure symptoms are warning signs that the engine's cam timing system is no longer staying controlled. The timing chain connects crankshaft movement to camshaft movement. When that relationship becomes unstable, the engine may rattle, run poorly, set timing faults, lose power, or becom …

Why Upgrade Rod Bolts Even on Stock Rods starts with understanding that upgrading rod bolts on stock rods is not the same as saying stock rods are bad. The better way to think about it is this: The rod may be acceptable for the build, but the bolt still has to maintain clamp load under the way the e …

A customer usually asks about studs when the engine is already in a serious conversation. The head is off. The head gasket failed. The engine is being rebuilt. The car is being prepared for track use. Or the customer is tired of paying for repairs that do not hold up. That is the right time to talk …

Cryogenic timing chain treatment is a controlled cold-treatment process applied to a metal timing chain after manufacturing. The goal is not to make the chain magical. The goal is to improve the stability and wear behavior of the metal parts that make up the chain. A timing chain lives a hard life. …

Buying a B48 timing chain kit should start with three questions: Is this the right application? What problem are we solving? What else should be planned before the car is apart? This guide focuses on fitment, budgeting, related products, customer type, and purchase decisions. For the master article, …