Lets talk Seats....





First what are your plans for the seats once installed?
Will you be using them with a harness set up for any track events, or are you just looking for something that holds your butt in place on the street?
If you intend to do any track/harness set up, the most important aspect to consider is not how your waist fits (that's important) but where the shoulder harness pass-thru is located as it compares to your shoulders once in the seat. If the holes are below your shoulder, move on and find another seat. This will cause major spinal issues if you are ever in an accident.
For street use, you need to consider whether or not the new seat has the compatibility to use the OEM seat belt receiver and that the seat belt will still hold you in place if needed to. In other words make sure the lap belt is not riding on the bolster area and thus NOT tight in your lap.
It appears everything you are considering so far all run on adjustable tracks and not a fixed set up. Corbeau makes a double locking slider mount specific for the C5, I am just not sure what other seats will work with that mount.
I am on my 3rd seat now and I love it, started with OEM, then Corbeau FX1 Pro and now Cobra. I do some track events and drive it on the street, so the seat does double duty. I even did the National Corvette Caravan 2,000 mile trip in 2009 using this seat. Very comfortable for me. I went with the fixed mount because i needed the added head room since I wear a helmet on the track, and the adjustable mounts make you sit higher.
You can try calling Phoenix Performance (Forum Sponsor) as they make custom mounts for the C5, mine is fixed, not sure if they make adjustable ones.
Good luck in your search and the search is half the fun.

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And a plug for Dennis and his Double Din Mod!!
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I'd like a more supportive seat for the street with the stock seatbelts.
I keep going back and forth. Depends on what day of the week it is. LOL








