COMP Cams Valve Springs 1.625in CHR/Sil 991-12 5G4RBF " BMW 1M (2011-2012)

" BMW 1M (2011-2012)

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COMP Cams Valve Springs 1.625in CHR/Sil 991-12 5G4RBF " BMW 1M (2011-2012)CCA Valve Spring Sets Engine Valve Spring 1. 639" OD, . 782" ID dual valve spring; 214 lbs 1. 950", 662 lbs 1. 250"; . 750" maximum lift Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what the application. The dual spring design creates a stronger valve spring that can