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HH Designs
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BE-VS-S65
Designed by former BMW M-Engine designer. These valve springs offer increased lift, seat pressure, and higher RPMs over stock valve springs. BE-Design valve spring features: 64% higher seat pressure 34% higher pressure @ 0.450 inch lift 37% room for more camshaft lift Designed by former BMW M-Engine designer. These valve springs offer incre... -
BE-VS-S85
Designed by former BMW M-Engine designer. These valve springs offer increased lift, seat pressure, and higher RPMs over stock valve springs. BE-Design valve spring features: 64% higher seat pressure 34% higher pressure @ 0.450 inch lift 37% room for more camshaft lift Designed by former BMW M-Engine designer. These valve springs offer incre...