Here is an e-mail I received from Roush in bold below, thanks to Gianni Mocchi that I have been dealing w/ for years. My # is 101 and did not have the work done as I previuosly was told from the dealer, so all numbers should check w/ Roush to see if it has been done, but it seems unlikely. This is the update that gave the dynojet results of 505 rwhp as opposed to 436! Major difference. Looking forward to getting it done.
To better assist you with your concern take this vehicle to your local Ford dealer and have them contact ROUSH to complete the Product Bulletin #041808-1. Which a PCM update and a tensioner update will be preformed. If you have any further questions please feel free to contact our warranty department at 1-800-59-ROUSH Option #2 . Attention Joe.
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P51A off-road exhaust & updated ROUSH tune
http://www.cardomain.com/ride/574408/3
360R 5,800k, Jack's sig on dash, 380 pcm, 2.8 pulley, MAC CAI, Flowmasters, S3 suspension, MAC c/c plates, Roush short throw
