Chainsaw
Well-Known Member
The Whipple stage 1 dynos at 638 rwhp. The Roush phase 1 dynos at 648 rwhp. Pretty equal in that respect. The advantage went to Roush for their warranty coverage which was included in the price of the supercharger. I would have had to pay extra for the warranty on the Whipple.Good stuff, enjoy. It is my daily so I’m looking for something conservative but fast enough if that makes since. Maybe hellcat numbers in a much better looking s550 pony.
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