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Goodridge has developed from a single seat race team in Canada
Install note: Torque spec for the fitting into the valve cover is 100in/lbs
over 6k rpm we see variation in measured dyno HP
No drilling at all
allowing them to be used in both race and street configurations
Powell YYZ Cobalt Lowering Springs S Goodridge has developed from aThese high quality rising rate performance lowering springs were devised by John Powell drawing on his experience building race Cobalts for General Motors Performance Division. Engineered by Hyperco out of the USA. Hyperco have supplied the springs for every winning Indianapolis 500 race car since 1960 Accepted overwhelming by the Cobalt Nation, now on the 7th production series. V. 1 was a slightly higher spring in trim height as racing experience
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