Schroth Quickfit Harness?
 

Does anyone know if any of the available models fit the 8? Schroth only supports 5 makes of cars, and Mazda is not one of them, but I have seen these harnesses used in a variety of other cars. Anyone know if one of them will work in an 8? Anyone know of a similar alternative that will fit?

I have a set of Schroth Rally 4 belts. Love them.

I like the bolt in better anyway. If you contact their engineering folks, they will recommend a Rally 3. That works as well but only attaches to the rear pass shoulder bolt. I tied the 4 to that location and the lap belt location. Between the two, the pull angle is right at the limit, but the send attach point seems better. The two halves unbuckle, the rear part just hangs, the front one comes through the hole and I wrap them back around and tuck them under the seat. The front ones attach to the seat belt bolts on the outside, and I stuck it under the seat rail on the inside. Since the factory belt attaches to the seat, the rack attachment is beefed up a bit.

Yeah. I am also looking at the Rallye 3. I just like the idea of being able to remove it almost completely and throw it in the trunk when not in use. I only use a harness at the track. I have the Rallye Cross in my Miata, so I naturally looked to Schroth again. I'm sure the 3 will work. I'm not sure about any of the Quickfit models, so buying one would be a gamble.

My buddy has a set in his BMW 128i (prepped for STX) and they are really convenient. Strictly speaking, we have all the same attachment points but I don't know whether or not they'll be safe to use in our cars.