Vibrant Intercooler Core, 25"W x 11.8"H x 3.5" Thick - 12832 AN Vise Jaws C16 fuel has an established

C16 fuel has an established performance standard that still exists today

1991-1998 Nissan 180SX 2

or you want to upgrade to a stiffer bushing (or vice-versa) these are exactly what you need

Subaru Urethane Exhaust Hangers - 15mm (sold individually) Durable Urethane Construction

A stepped drill bit works well for doing this

Vibrant Intercooler Core, 25"W x 11.8"H x 3.5" Thick - 12832 AN Vise Jaws C16 fuel has an establishedVibrant Performance Horizontal Flow Air to Air Intercooler Cores feature Bar and Plate construction and a unique louvered fin design on the ambient path that maximizes the core's available surface area, and an offset fin design on the charge path allows for minimal pressure loss.