Pair Your High Performance Valves with a Set of Upgraded Springs and Retainers!
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Pair Your High Performance Valves with a Set of Upgraded Springs and Retainers!
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Everything you will need to do a head service on your BMW
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This product was last offered at the strikethrough price on
01-03-2026
Upgrade Your Factory Intake and Exhaust Valves
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Everything you will need to do a head service on your BMW
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This product was last offered at the strikethrough price on
02-27-2026
An excellent CSL street or track upgrade
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Two required per valve, necessary for use with certain supertech valves
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This product was last offered at the strikethrough price on
03-04-2026
Forged Chromoly with Diamond Like Carbon Coating built for superior wear resistance at the same weight as OE.
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This product was last offered at the strikethrough price on
05-02-2026
Swap out your BMW's Head Bolts for ARP's CA625+ Head Stud Kit!
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The perfect choice for street or sport use.
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Complete cylinder head with guides, seats, valves, & springs
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Quality performance camshafts, featuring 238* intake duration and 272* exhaust duration.
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Bare head with guides and seats only
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Complete cylinder head with guides, seats, valves, springs, and all neccesary hardware for installation
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Includes all neccesary hardware for installation
Increase Cylinder Head Clamping Force!
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Unleash Your S58's Power with Kelford Cams
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Inconel-Nimonic / Sodium Filled, Std 28mm, set of 12.
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