If you insure it as an MP215 rather than as a modified ST it might not be as high? I believe the ABI code for an MP215 ST-3 is 18503399
And yes, it's an increase from 200bhp to 215PS (212bhp), so about 12 horsepower not 35. That's 6% versus 19% increase so could be part of the reason.
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2005 Fiesta ST - wrote off
Newman fast road cams, Fusion Fabrications custom inlet manifold, custom exhaust