Block guard made of high quality T6061 aluminum, designed for Honda series D engines (D15, D16). 
Fills the empty space in the engine block, which strengthens and stiffens the cylinder walls, while allowing the free flow of cooling liquid. 
Especially recommended for turbo or compressor engines, working at high speed.

Turboworks is a Polish manufacturer and supplier of performance turbochargers and forced-induction components. Based in Rzeszów, Poland, Turboworks engineers and balances their turbochargers in-house, offering T3/T4, GT, and ball-bearing turbo units for a wide range of turbocharged street and motorsport applications.

Official page: turboworks.pl