At first i was very confused as well, but it's very easy.
You will need to send them 5 items: KEY, ECU, IMMOBILIZER, SIGNED WAVER, AND PROOF OF PURCHASE ( of the reflash - print your paypal invoice)
STEPS to get a REFLASH for 04-06 TSX:
1: Remove your ECU & immobilizer
(for instructions how to remove it visit TSX ECU removal )
2. Go to Club RSX.com Hondata Reflash: 04-06 Acura TSX (Manual & Automatic)
(or other dealer of your choice)
3. Place a order threw them. (or anyone else of your choice)
4. You will receive a email which gives you instructions to what you need to send and where to mail it to.
5. Go to any mail provider of your choice, and ship it out next day service. (make sure you get a tracking number and insurance on it)
6. Wait 4 days to get your stuff back ( usually 4 days may take 5 )
7. Reinstall your ecu and immobilizer
8. have fun and hit vtec
Here's a picture of mine
And here is the video .. Please excuse the music lol
You will need to send them 5 items: KEY, ECU, IMMOBILIZER, SIGNED WAVER, AND PROOF OF PURCHASE ( of the reflash - print your paypal invoice)
STEPS to get a REFLASH for 04-06 TSX:
1: Remove your ECU & immobilizer
(for instructions how to remove it visit TSX ECU removal )
2. Go to Club RSX.com Hondata Reflash: 04-06 Acura TSX (Manual & Automatic)
(or other dealer of your choice)
3. Place a order threw them. (or anyone else of your choice)
4. You will receive a email which gives you instructions to what you need to send and where to mail it to.
5. Go to any mail provider of your choice, and ship it out next day service. (make sure you get a tracking number and insurance on it)
6. Wait 4 days to get your stuff back ( usually 4 days may take 5 )
7. Reinstall your ecu and immobilizer
8. have fun and hit vtec
Here's a picture of mine

And here is the video .. Please excuse the music lol