Supertech Black Nitride Valves for Honda D-Series VTEC Select::Intake 31.0mm (Set of 8) (HIVN-1102-8) • Intended for drag racing

• Intended for drag racing applications

might as well get the baddest intercooler you can

Installation is as simple as inserting the supplied rubber plugs into the bumper and threading the supplied black stainless steel screws into place

CSF is able to use thinner and lighter aluminum material (better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded

Each spring is then individually shot peened

Supertech Black Nitride Valves for Honda D-Series VTEC Select::Intake 31.0mm (Set of 8) (HIVN-1102-8) • Intended for drag racingSupertech black nitride exhaust and intake valves for VTEC D Series engines. These valves are available in various sizes to match your head diameter. Sold as a set of 8 or individually as needed. Please do all your research and consult your engine builder if necessary! Black nitride valves are made from one piece forged stainless steel then go through a special hardening process to lessen the friction between the valve and guide. Vehicle Fitment: