Premier Power News

Super Sigma around a Slippery Silverstone

Over two hundred horsepower from a normally aspirated 1,600cc engine? Seems somewhat implausible doesn’t it, at least outside the rarefied world of specialist motorsport. Well at least it would do unless you’d already read about the work engine specialists Premier Power has been doing creating Sigma upgrade packages, and which Lowflying first got to test ….

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