Stylistically they are very different. Functionally they are identical but as was said, how different can you make them and still have them bolt on?
I'm sure the market is big enough for both. Some will prefer your styling and some the ones from Twist Machine.
To be honest I'm surprised someone just now came out with this product.. it's a pretty obvious concept.
Your's look very nice.
And I would resist the urge to call "shenanigans" unless you know for sure..
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"A ship in port is safe, but that's not what ships are built for."
See Bad Penny run the cones:
https://www.youtube.com/watch?v=8GUPPIX-92U
1971 Chevelle Wagon - Roadster Shop Chassis ProCharged Shafiroff LS and lots of yada yada
1968 Camaro - Project Track Rat - 440 RHS LS