Information provided by various sources including Roush Performance, FnSweet Contributors. We welcome continuing contributions to our archives!
2005 was a the first year of the new S-197 Roush Mustang. Producting ramped up somewhat later than in normal years. There was no Stage 3 Roush Mustang for 2005 as Roush was busy engineering, proving and tuning the new supercharger system for production.
There were Roush Focus and F-150 models produced in 2005, but we are still obtaining all the information for those models.
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