High Performance 4-1 Design 1-PC Stainless Steel Exhaust Header/Manifold for 02-07 Subaru Impreza WRX Turbo GD GG

The exhaust manifold found on the 2002-2007 Subaru Impreza WRX 4 Cylinder Engines 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

The exhaust manifold found on the 2002-2007 Subaru Impreza WRX 4 Cylinder Engines 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 2.0L 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:1 x Set of Header Exhaust System, Gasket(s) and Bolt(s)(ALL if any is necessary for Installation)

Compatible with:02-07 Subaru Impreza WRX/ STi GD/ GG

Product Features

  • Precision machined steel flanges that provide a tight seal at the head and allows a high flow rate through the primary tubes
  • Made From High Quality T304 Stainless Steel For Strength & Durability
  • Constructed With TIG Welded CNC Machine Flange For Percision & Fitment
  • All Tubing Is Mandrel-Bent
  • Comes With O2 Sensor Bung Insertion & Metal Gasket