i was planning on getting a chiped computer made for my jrsc setup by sales@racingchips.com i found them on ebay are they any good? he said they can raise the revlimit set vtec point up 11psi on stock map full throtlle launch nos control advance timming all for about $300 with jumper harnesshttp://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7969675580&catego ry=33596 should i do this?