DNA MOTORING
H-HDS-NA02-L4
DNA Motoring HDSNA02L4 Stainless Steel 4-1 Exhaust Header Manifold
Headers
Replace Stock Restrictive Headers and Increase Horsepower and Torque.
TIG Welded CNC Machine Flange. Gaskets, Bolts and Nuts are Included.
Inlet: 2.00" X 1.25" Rectangular. Outlet: 2.50". O2 Sensor Bung is Welded on Headers so Stock O2 Sensor can be Plugged In.
Professional Installation is Highly Recommended (No Instruction is Included)
For 02-06 Nissan Altima 4Cyl (Except Hybrid). Does NOT fit Sentra or Altima V6
The exhaust manifold found on the 2002-2006 Nissan Altima DOHC 4 Cylinder Engine were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 off-road racing headers are designed to allow the exhaust gasses to flow more freely from each cylinder and combine in a more efficient manner. Tubing has been optimized for the 2.5L engine. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
Package Included:
Compatible with:
90 Degree Angled O2 Check Engine Light CEL Fix Oxygen Spacer Exhaust Extension - 4 Piece Kit
CNT 90 Degree Angled 02 defouler and two straight defouler CEL Fix Oxygen Spacer Exhaust Extension
O2 Sensor Spacer Adapter Extender
10 Nissan Cowl Bumper & Fender Liner Push-Type Clips
Standard Motor Products PC464T Crankshaft Position Sensor
ACDelco 45H0237 Professional Front Coil Spring Set
275C Silver Compressor Duty Sealed 27520
Mix me 1666