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New product! This was something I was excited to do for a while. You can buy the fanciest radiator money can buy, do all the ducting to gui

I would like to start off by saying happy remembrance day or happy veterans day, which ever one you celebrate based on your country. I hope

As promised, I did more CFD test on an NA Miata to show how my rear diffuser kit would effect the air flow underneath the rear end of the c

First batch of R Theory Motorsports V1 Rear Diffusers are in stock and ready to be shipped out. The first few diffusers have already been s

I made a trip to my powder coater to pick up the parts I dropped off a few days ago. Like always, he did a great job and I was very happy w

So the first version of the R Theory Rear Diffuser has arrived, modifications made and noted, and installed. It fit well and was much stron