Hello, I was searching around on ebay for a lip kit. All the ones that I saw were called "p-1" lip kits. Now those p1 kits do look very similar to the rs1 kit I see on other websites. Are they exactly the same thing?

 

same thing.

racing solution calls it the rs1, and everyone calls it something to benefit them in their sales.

ABS Dynamics is the company that produces all of them.