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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
105# - good for any NA setup or a boosted 1
This is the sequel to ZZP's popular 2
Install note: Torque spec for the fitting into the valve cover is 100in/lbs
allowing them to be used in both race and street configurations
No issues with spark plug boots touching headers
Powell YYZ Cobalt Lowering Springs S 105# - good for anyThese 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
