No Honda Civic Selected Select Your Civic Parts Catalog

Honda Civic Weapon R R18 Race Header

General Image
Actual Part May Vary
Application Information

Please select an application to view specific information, pictures, and pricing for Weapon R R18 Race Header.

Select an Application for Your Import  
Select Your Application:
Year Range
Door Config  [Trim Level]
Application Notes
2006 to 2011
All [DX, EX, EXL, LX, LXS]

(add product to see shipping rates)

Weapon R R18 Race Header Description

This new Weapon R race header for the 2006-2011 Civic DX/LX/EX (R18 motor) replaces your undersized factory exhaust in favor of a full 2.5" exhaust setup. This Weapon R header is one of the largest on the market for the R18 Civic. It is made of 304 stainless steel and features CNC machine mandrel bending which clears the factory lower arm bars.

Key Features:
  • About a 6 whp gain, more with other modifications.
  • Stainless steel flanges.
  • Stainless steel CNC mandrel bent tubes.
  • TIG welded for strength and durability.
  • Eliminates catalytic converter for best performance.
  • One of the best power mods for the R18 Civic.
  • Comes complete with install hardware.
Emissions Notes: This product will eliminate your catalytic converter and is not smog legal. If you still want to use a catalytic converter with a race header, we highly recommend using one of our MagnaFlow Spun Metallic high-flow cats (with a little help from a muffler shop, it can be made to work).

Availability and Condition: Unless otherwise noted, this product is in brand new condition and usually in stock at one of our warehouses, or will ship directly from the manufacturer.