looked into one, but ended up going with sct from modular depot. love mine, corrects the speedo, shuts off ses, bump up timing, etc. i bought it mostly for those reasons, i wouldn't expect too much power gain from any non-dyno-tuned chip, but i'll have to say i was pleasantly surprised. plus, its cheaper than diablo. i'll let u know after i get dyno this weekend. (crosses fingers)