Product Description
Carpenter Racing Valve Springs are the most popular valve spring for the Suzuki Hayabusa and will work with cams up to .445" lift with stock or aftermarket retainers.
The 60psi springs are recommended for nearly all application including all motor and nitrous. The 70psi springs are recommended for turbo applications only.
NOTE: Will not fit 2025 Suzuki Hayabusa.
Suzuki changed the valve springs, retainers, and keepers for the 2025 model year. To use these springs, you’ll need to backdate the top retainer, bottom retainer, and valve keepers to the earlier versions.
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great springs
this is the second and third sets of these i have used really like how they work
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Carpenter Springs
These are the best Springs on the market...


