Tomei Camshaft - PROCAM - Nissan Skyline R34 RB25DET NEO6, Intake, 260 / 9.15mm Shock Absorbers you may need to either

you may need to either add a port to accommodate a wideband sensor or remove one of the existing ports

allowing you to tweak your camber between -1

having too much heat in an engine bay can cause unnecessary wear and strain on delicate components not designed to operate in extreme engine bay temperatures

direct alternatives to the OE item

either a 3 paddle disc ora 4 paddle disc

Tomei Camshaft - PROCAM - Nissan Skyline R34 RB25DET NEO6, Intake, 260 / 9.15mm Shock Absorbers you may need to eitherWhen opening the intake valve during high acceleration the G from the camshaft requires to send as much mixture to the cylinder, Intake, the shortest time possible. However if the speed is too high it can damaged the Valves, Valve Seats and Valve Springs if the Acceleration G is too high. The Asymmetrical profile design given to the camshafts will allow the Intake and Exhaust Valves to fulfill the target requirement with the wider duration and high