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This product was last offered at the strikethrough price on
03-04-2026
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
03-04-2026
A more aggressive option for street use and an upgrade from stock M3 camshafts
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Ready to make all the power!
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Includes new Valvetronic motor, gasket, and hardware
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For vehicles equipped with a plastic valve cover.
This product was last offered at the strikethrough price on
05-02-2026
Complete cylinder head with guides, seats, valves, & springs
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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
Upgrade to ARP high tensile strength Custom Age 625+ Head Studs
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-02-2026
Upgrade to 5150's Custom Age 625+ Head Stud Kit Built by ARP!
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Complete cylinder head with guides, seats, valves, & springs
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Upgrade your S55 Engine with this all Inclusive Kit from 5150!
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Upgrade your S55 Engine with this all Inclusive 1000hp Capable Kit from 5150!
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Everything you will need to do a head service on your BMW, plus a new thermostat, thermostat housing, a magnetic drain plug, a camshaft position sensor, spark plugs, ignition wires, and distributor
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This product was last offered at the strikethrough price on
01-03-2026
Everything you will need to do a head service on your BMW, plus a new thermostat, thermostat housing, a magnetic drain plug, a camshaft position sensor, spark plugs, and ignition coils
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This product was last offered at the strikethrough price on
04-06-2026
Locks your Camshaft in place, making performing VANOS or cylinder head work more convenient
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This product was last offered at the strikethrough price on
05-02-2026
A popular performance street and track upgrade!
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Perfect for street applications
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