aFe Twisted Steel Header SS-409 HDR Nissan Frontier/Xterra 05-09 V6-4.0L Fuel Delivery>Fuel Pressure Regulators

aFe Twisted Steel Header SS-409 HDR Nissan Frontier/Xterra 05-09 V6-4.0L Fuel Delivery>Fuel Pressure RegulatorsThe new Twisted Steel performance header from aFe Power is redefining the header industry with new pulse control technology. aFe engineers have designed this header using optimum tube lengths and mitered collectors for maximum flow and velocity for power delivery across the entire power band. Combine with a large 1 2" thick head flange and 14 gauge 409 stainless steel tubing, you have a header that is strong and powerful. Twisted Steel headers are 100

Engineered to replace restrictive factory pipes

These headers are highly recommended for convertible applications where the top is stored over the engine compartmentTIG Welded inlet ports for strength

This high quality kit features 6061-T6 aluminum bearing housings which feature a special Mil-Spec high corrosion resistant anodizing and CNC machined 6061-T6 articulation spacers

This air intake system was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor and crank case breather hose

PSIa pressure sensors are required if you wish to measure vacuum

bright-red anodized aluminum end caps

The aFe Control

smooth and free-flowing

This air intake system was developed to accommodate the engine's factory emissions control devices including the air inlet temperature sensor and air filter restriction gauge

Materials are properly distributed for maximum strength

View the 21-8211DC vehicle applications to determine the legal status for each vehicle

Add in serious track use or a coilover conversion and they are guaranteed to fail