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Precise CFM values available in the diagrams under the product pictures
Did you install a large diameter exhaust and now the factory center support brace doesn't fit
Blem: This is a Brand new runner that has been mocked up on an engine and has bolt marks
The result is a constant “valve open” mode
our Billet Front Main Seal that is stronger
GSC Power Division Beehive Valve Springs & Titanium Retainers for BMW M2 (G87) M3 (G80) M4 (G82) S58 Engines Built DNWA Precise CFM values available inGSC Power Division Beehive Valve Springs & Titanium Retainers Fitment: All BMW M2 (G87) M3 (G80) M4 (G82) S58 Engines GSC5023 The GSC Power Division Beehive Valve Spring Kit with Ti Retainers for the BMW S58 includes 24 Titanium Retainers (12 Intake and 12 Exhaust) and 24 Beehive Valve Springs. Our Beehive Spring utilizes advanced material heat treatment methods for superior load loss capabilities. These springs have the highest level of spring load
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