if you get an XR 6 T, i suggest you dont mod it just yet. Any boost changes show up in the ecu, which will void your warranty, which you defintaley need. The BA's have a problem with the bypass O ring leaking... only a few $ for a new oring and some washers to fix it... but takes about 1.5 hours to fix on the XR 6 T!.. also brake discs are dodgy, and Ford are designing some new ones to replace on ALL cars sold.