Where's the torch spark plug? What is the quality of torch spark plugs?

Today, I changed the K7FII of Torch, and it feels good. My car is 20 12 Great Wall M4. Compared with the original, the price of Torch is much more expensive. In terms of performance, it is impossible for him to increase your performance, but the power output will be smoother. After changing it, there will be no rush feeling from the original factory (the feeling of pushing back is very strong when refueling, and it feels like pulling you back when collecting oil); Secondly, it is impossible to "reduce fuel consumption". Spark plugs don't save fuel. Why do you feel fuel-efficient? I think this is relative, because when you step on the accelerator, you need to accelerate at a certain speed. When you reach it, you will collect fuel or hold the accelerator. However, a slightly better spark plug will stabilize the power output because of the stable ignition, so you won't step on the accelerator too deeply. I have never used other NGK or Bosch, but I think it is good to support domestic products, both in price and performance. I hope it helps you.