The Story
Specially developed for N54 and N55 engines which include 1 series 135i and 3 series E9x 335i. Featuring bigger volume, high quality core, optimized casted end tanks, thinner end tanks walls for a lighter weight and low pressure drop
Description
Specially developed for N54 and N55 engines which include 1 series 135i and 3 series E9x 335i. Featuring bigger volume, high quality core, optimized casted end tanks, thinner end tanks walls for a lighter weight and low pressure drop












