(Garage) Set Your Car Catalog

Weapon R R18 Race Header for Honda Civic

General Image
Actual Part May Vary
Larger Image
Application Information

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

Tax Refund Sale
Select Application For Your
Honda Civic
Year Range
Door Config  [Trim Level]
2006 to 2011
All [DX, EX, EXL, LX, LXS]
2012 to 2015
All [All Except Si]

(add product to see shipping rates)

Weapon R R18 Race Header Description

Emissions Notes: This race header will eliminate your catalytic converter and can never be made to be emissions legal for public road use. By purchasing this product you are agreeing to use it for race use only on non-public roads (like a race track). If you still want to use a catalytic converter with a race header for race use, 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).

This new Weapon R race header for the 2006-2015 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 to 8 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.

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.

Trending/Hot Upgrades
....Loading Featured Parts for your

..Loading TrustPilot Reviews