Bench tuning of the RX-8 PCM. This requires removal of the factory PCM.  It is located under the hood opposite the fuse box.  
Remove (3) 10mm bolts and take off cover, unplug all connectors and remove (4) 10mm bolts.  Remove all brackets and plastic ware from PCM.  
Sending only the PCM box.  If flat rate padded envelope is used, PCM should be received in 2-3 days unless delayed.  PCM is shipped back USPS Priority 2-3 day shipping. Please fill out this form out as required.
https://forms.gle/uJYVC4yAAaueM8kZA
Please send all PCM's to:
TREX Performance
534 Wrightstown Sykesville Rd
Wrightstown, NJ 08562