Stage_3
Well-Known Member
Do you know why that is Kyle?The RS3 has a calibration that is unique to the production vehicles rated at 670HP the retail kit we produced with Ford Racing has the cal rated for 627.
So, there are 2 different tunes, I take it? One for the Phase 1 kit for V8 Mustangs and the other for the actual Roush Stage 3 cars? To get the 670 HP, you need to buy an "actual" Roush car. I guess it's all in the marketing.
(I'm not knocking on Roush, just looking for an answer. I own a 2013 GHIG RS3 and love it.
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