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Lets you fine-tune shift rate, side load pressure and full shift out poundageDesigned using the highest quality materialsAll EPI springs are manufactured using a 5% tolerance- the lowest in the industryISO 9001-2000 certified

Lets you fine-tune shift rate, side load pressure and full shift out poundageDesigned using the highest quality materialsAll EPI springs are manufactured using a 5% tolerance- the lowest in the industryISO 9001-2000 certified

Largest selection of springs to tune fromDesigned from the highest quality materialAll EPI springs manufactured using a 5% tolerance which is the lowest in the industryISO 9000 CertifiedDesigned for extended life in demanding applications40%...

Largest selection of springs to tune fromDesigned from the highest quality materialAll EPI springs manufactured using a 5% tolerance which is the lowest in the industryISO 9000 CertifiedDesigned for extended life in demanding applications40%...

Kits include both bearings, seals, O-rings and miscellaneous components as needed.

Kits feature Winderosa qualityContain exhaust valve gaskets, O-rings and seals where required

Kit includes all necessary gaskets, rubber parts and valve stem seals to rebuild engine

Includes spider casting, all buttons, rollers, pins and washers.

High strength carbon fiber petals for stock cagesWorks well for many turbo applications

Full gasket sets: Contain all gaskets necessary for professional engine rebuilding, including high performance oil seals. Designed for complete engine rebuilding

Full gasket sets: Contain all gaskets necessary for professional engine rebuilding, including high performance oil seals. Designed for complete engine rebuilding

Full gasket sets: Contain all gaskets necessary for professional engine rebuilding, including high performance oil seals. Designed for complete engine rebuilding