Theres a place in tampa called Foriegn Connection. They specialize on DSMs if thats only the turbo DSM or any DSM im not sure just found out about it myself. I might check them out soon since i have recently turboed my non-turbo eclipse and will need someone to build up my bottom end...again my motor is a 420a and not a 4g63 so and who knows if they work on them?? They have a website so you can check that for the address. Hope that helps.