This Samco Sport boot is the best on the market bar-none, no Chinese copies here. These elbows are hand made in the UK and fully inspected before leaving the factory. They are contoured inside and out to provide smooth, laminar airflow to the throttle body, creating up to 5hp on your M3/ MZ4.
Special design and construction implemented for proper intake elbow flexibility (when engine moves on its mounts). SamTech heat and fluid resistant material is more than just "silicone", it's designed to hold up to years of weather, high heat, and hard use without slipping off or peeling and it looks great the entire time you own it.
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