Off-center winding and other deficits of ignition coil replicas can result in expensive follow-on costs.Ignition coil replicas are often cheap. And that is how they are made: from low-quality materials and a large number of individual components are put together, they do not achieve the electronic properties and thermal stress-bearing capabilities of the original coils. The replicas work in only a few engine versions with coils with integral electronics in particular. And the replicas are often manufactured without reliable quality controls - unlike the original BorgWarner branded ignition coils. To avoid expensive follow-on costs, you should refrain from selling and using these dubious products. Although these cheap replicas are often almost identical in appearance to the original, the quality is not even close to comparable. That is why BorgWarner has looked more closely at a few ignition coils - both the original and a cheap replica.