Callies Ultra I-Beam Connecting Rods for Nissan GT-R VR38DETT BBC Journal penske shock The new Boost Logic Ultra

The new Boost Logic Ultra Spool Turbo Kit is based on the Garrett G series Turbochargers

Flow Rate: 470lph @ 40psi (120+ gph)

and a clean

For off-Road use only

to increase the strength of the alloy by as much as 30%

Callies Ultra I-Beam Connecting Rods for Nissan GT-R VR38DETT BBC Journal penske shock The new Boost Logic UltraUltra connecting rods are made entirely in the U. S. A. Every Ultra connecting rod is produced from specially formulated TimkenSteel 4330V steel. This material is then precision forged in Michigan and fully machined in our Fostoria, Ohio facility. Many geometric nuances have been incorporated into the design of Ultra connecting rods. These design features enhance the Ultra against specific loads and stresses which are applied to connecting rods