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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
Material: Black Nitride
Main Journal: 55mm
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- Proven to lower intake manifold temperatures by up to 15%
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Ferrea Single Valve Spring & Titanium Retainers for BMW M240 (G42) M340 (G20) & Toyota Supra MKV (A90) B58 B58B30C Engines Iroz Motorsport Classic Beanie Material: Black NitrideFerrea Single Valve Springs & Titanium Retainers Fitment: BMW M240 (G42) M340 (G20) & Toyota Supra MK5 (A90) Gen 2 B58 B58B30C Engines KT4048 The new Ferrea Valve Springs are processed with premium grade alloy and feature special thermal treatment. Ferrea's advanced spring design and material specs have uniform load and stress distribution even in the most extreme racing conditions. Great for high revving applications. These valve springs and
