If you don't want to get mad about someone making a copy then you should compete financially. /END RANT***
I wasn't going to say much till I saw that comment.
But now I need to Rant.
Ive gone thru the same thing. As in spending a lot of time effort and money to design something only to have it copied.
Your comment obviously shows you have never ever created or designed anything in your life.
I dont know how Bisi Designs his stuff. But this is how I do mine. First a project is made in a simulator. you then study the wave dynamics inside the engine based on RPM and Exhaust design. You spend hundreds of man hours doing this over and over again till you find the combination that makes the most power. Then you start to build them and another round of testing starts.
It can take 4-6 months to design a header the right way. So by the time its done I have at least 3-4 months of my life invested in the design.
It takes all off 1 day to copy the design.
And the guys doing to the copy. Work are uneducated semi skilled welders.
So what happens now.
a. I have realised that people will copy. Its just how it is.
b. There is no point investing time and money to design something that will be copied. For every fast engine / exhaust I have designed people who just copy my work sell 10 with zero time invested in R&D and design.
c. So now I no longer invest a lot of time in Design. Unless its for my own motor. And I know it wont be copied.
d. Only special customers who I know can be trusted get the good stuff. The rest can go buy cheap copies off what ever is in fashion.
e. There is no point filing a patent because stuff still gets copied. You just make it easier for them by filing a patent. A Patent Lawyer told me this. Never patent your best ideas. Because they will get copied. Instead just keep how you do it to your self.
f. Nodays anything I sell on is only 50% as good was I know how to make it.
That 100% is kept only for my own motors and select trusted customers.
Each builder finds his own way to combat this problem.
Also realize that this attitude hurts the community because you no longer have good minds working on new innovations.
Im no saint I use a pirated s/w and copy music. So in the end its all about figuring out the best way to protect your work.
Lastly no matter how good the copy. They can never get it to match the original product. Best I have seen is they will get it to 80%.