The 5gen requires no "modification", just the two extra parts (I can refund price of these, email me for details). The 4gen does however require "modification", and the two little parts.
If you guys have any questions at all, feel free to email me or contact me on AIM. I dont check this board often, just dropped by because I saw some hits coming from here to my website.
New eBay link -
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2478161795