Read about them sure, until I did it, I had not seen it done before in the way that I did. It's also worth noting that the RX8 seats will not fully slide back unless you trim some of the lower molding either on the seat or in the car. Now, I'm 5'10" with a bad left knee so when I push the clutch, I want my leg fully extended. I did not have the seats all the way to the rear. They also bump you up a little higher.
Originally Posted by Mahjik
Guys, Dave (rest is soul) may have "hacked" the seats into the car. However, at least he posted how he did it. Instead of slagging his work and not posting anything constructive, how about you post how you did it? That would actually be constructive for future members looking to do the same as well as the OP.
OK, step one is jack the car up and make sure it's completely level. Side to side and front to back.
take a few measurements on the stock seats, how far do they travel forward, back, where is the centerline of the seat in relation to a few points, what angle is the base at
take the old seats out
Go take out your 4.5" grinder with cut off wheel and grinding disc, drill with spot weld cutter, ocy/ace torch, ball pien hammer, plasma cutter and spend hours cuting, grinding, drilling the all the mounting points, brackets, etc off of the RX8 seats. This WILL take HOURS. Don't forget you're throwing sparks all over the place so the chances of buring the seats is pretty high unless you have some welding blankets.
place the seats in the car in perfect relation to where the old ones were, you'll spend hours doing this as well taking measurements, building templates, remeasuring, etc etc
Now, go to your 3/16 and 1/4" stock of steel and with your plasma cutter in hand start cutting out brackets based on your templates.
Knock off all the slag, grind them smooth and file them to perfection.
Take out your welder and tack weld the first bracket to the base of the RX8 seat while it's in the car.... on top of your carpet, don't forget to move your welding blanket into the car so your carpet doesn't get burned.
Repeat this 7 times
remove seats and finish weld all of the brackets to the seats
allow to cool, test fit seat again.
You've now installed RX8 seats in an FD
I didn't take pics of the job I did for a client.