Advanced Tuning Products [ www.atpturbo.com ] 510 445-1682 Precision Turbo and Engine [ www.precisionturbo.net ] 219 996-7832 Tial Sport[ www.tialsport.com ] 989 729 8553 Turbos DirectLLC [ www.turbosdirect.com ] 623 376-2562 Limit Engineering [ www.limitengineering.com ] 928 453-7321 I was at the SEMA show and visited the Garrett booth. I asked them why they didn't have readily available tech support for their performance products. The gentleman I talked to said that was a common complaint, and the way they have tried to rectify the problem is to designate five distributors nationwide to handle questions such as yours. All the turbos that you have listed are either Garrett manufactured, Garrett designes, or Garrett copied (Ie. HKS makes their own housings but uses the CHRAs from Garrett). I'd give one of these places a call and talk to someone in the Tech Dept. Hope that helps, Mark
