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BMW 135is L6 (3
40mm Exhaust Full Race 292° Intake / 270° Exhaust 11
responsive street performance or a more aggressive setup for the racetrack
40mm Exhaust Full Race 334° Intake / 330° Exhaust 12
Our kit improves upon the OEM intake manifold
BMW S63 Coolant Reservoir Billet Finish:Raw Aluminum BMW 135is L6 (3RK Autowerks Billet Coolant Reservoir BMW S63TU4 Say goodbye to cracked plastic coolant tanks. The RK Autowerks Billet Coolant Reservoir is precision machined in house in Texas, USA, as a direct solution to the failure prone OEM plastic reservoir found on the S63TU4 platform. Crafted from solid 6061 billet aluminum, this reservoir is built for performance, durability, and long term reliability in high temperature, high pressure environments.
