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Quality Gaskets
specifically tuned primary lengths maximizes scavenging and increases torque throughout the power band
CFD-Validated Manifolds: Optimized runner geometry improves pulse energy
They are attached to the intake and turbos with stainless steel high force t-bolt clamps
this version is known to get (really) rowdy in mid-range acceleration and deceleration
K&N BMW E90/91/93 335I N54 Engine Performance Air Intake System - 57S-2003 fits_1989-201994`Mazda`323 Quality GasketsThe K&N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. A fully enclosed injection molded air box connects to the factory air intake hose. The removable lid
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