The plastic factory airbox is good at muffling intake noise and enhancing low rpm/low speed engine performance, but becomes very restrictive when the engine is operating in the higher rpm range ?? where most performance drivers need it.
The NEUSPEED P-Flo kit now offers a choice of two filter types: the time proven oiled multi-layer cotton gauze air filter that is washable and reusable or the new dry paper media filter.
Dry filter features:
After months of development, NEUSPEED has developed an intake pipe size that matches the factory MAF exactly. Because of this fuel trims are not affected and will not trigger any DTCs. In addition, eliminating the OE plastic MAF housing showed an increase in airflow, as no pre-screen is required to reduce turbulence when air is routed through the long piping with its smooth mandrel bends.
Flow bench test results: