High-quality cold-air intake upgrade for all 1999–2005 NB FFS kits. The preassembled air box fits behind the passenger-side headlight and in front of the stock radiator-overflow tank—the coldest location in the factory engine bay for a cold-air intake.
Air Box
Heavy-duty sheet-metal and CNC construction
Yellow-zinc-coated steel threaded inserts
Four stainless-steel button-head lid fasteners
Factory MAF and AIT sensors mount inside the air box
Air-box mounting bolts are concealed beneath the lid for a clean appearance
Intake Path
The air box draws from the factory opening beneath the headlight and the area connected to the large front-bumper opening while shielding the filter from radiator heat.
Custom FFS four-ply molded silicone engineered for an exact fit
3.1-inch-ID rear silicone bend sized for the FFS 75mm high-flow throttle body; easier to install than a standard 3.0-inch bend
Custom aluminum hard pipe routed beneath the supercharger
Fresh-air port for the idle valve
Largest K&N air filter that fits the available space, with enough airflow to support more than 300 whp
The under-supercharger routing eliminates the hose over the valve cover and keeps it away from engine and exhaust heat. It also preserves clearance around the oil filter and alternator for service.
EGR fitment: Systems with the earlier horizontal EGR bracket also need the EGR Bracket Upgrade Kit to retain EGR operation. The upgrade bracket relocates the EGR valve and leaves room for the intake pipe beneath the supercharger.
