The customer has a very persistent pursuit of modifications. It is said that he has never used the D gear and mainly drives in the SM mode. The girls who have ridden in his car either get out crying or end up throwing up. After tuning the ECU somewhere, it felt like the BMW was equipped with a propeller, ready to fly into the blue sky. Unfortunately, the good times didn’t last long. Six months later, the engine was shaking severely. Upon disassembly, it was found that the pistons and cylinders were severely damaged. So, everyone should avoid long-term aggressive driving and unreasonable modifications. I took a series of photos of the engine installation process to share with everyone.
When modifying and tuning the ECU, everyone must pay attention to the engine cooling (fans, radiators), internal reinforcement (replacing with higher strength pistons and connecting rods), and the overall performance improvements, rather than just increasing power through ECU tuning.
This article is a fan submission, originally authored by a netizen “Chongqing Hot Pot”, thank you!
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