Have you considered the Aisan RY gearbox? Available on the RX8? I haven't directly compared that box to the miata or the n/a S4/5 box but I can tell you it is a DRASTIC improvement (on paper anyway) to the Type-R box. The don't fail from torque either. As just about any RX8 owner what he was doing when he's tranny exploded and you'll soon realize unlike most people that like to parrot missinformation across the internet that it's not torque that kills this trans, it's something far different.
I've dissasembled that trans and have seen it happen first hand. It's interesting for sure but can easily be prevented. Either way, it'll bolt right up to your 13B and if it's in a race car, than shifter placement is of no real concern to you like it is to me which is why it's taken me so friggen long to deal with this box...... I've said too much 
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-The Angry Stig-
DGRR 2009, 2011, 2012 & 2013 - Best FC
DEALS GAP!! WOOHOOOO!!!!!
2015 Audi S4 - Samantha - Zero Brap S4
2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter
2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins
1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle
1988 'Vert - In progress
1988 FC Coupe - Gretchen -The attention whore BEAST!
I'm a sick individual, what's wrong with you?
I'm pure Evil
I'm still insane, in the best possible way.
I think Brian's idea of romance is using lube.
Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion.
You win with your thread. Most everything
It's a truck with a steel gate on the back. Just a statement of fact
Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff....
No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon.
-Angry Motherf*cker Mode ENGAGED-
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