Porsche 911 European Racing Headers for 911 3.4 - 3.8 Liter Motors Engine Components_Valve Covers Cookie-cutter outlets: Not included

Cookie-cutter outlets: Not included

Fitment: mounts into whale tails

Nominal fender width: 11 inches

Average pair weight: 20 lbs

Porsche 911 European Racing Headers for 911 3.4 - 3.8 Liter Motors Engine Components_Valve Covers Cookie-cutter outlets: Not includedThese equal length Porsche 911 racing headers are sized for 3. 4 3. 8 liter engines and use mandrel bent primaries with scallop cut three into one RSR collectors. Dimensions & details Engine range: 3. 4 3. 8 liters Primary outside diameter: 1 3 4 inches Primary inside diameter: 42 mm Average pair weight: 20 lbs Material: 16 gauge mild steel Construction: Equal length, mandrel bent primaries Collectors: Scallop cut three into one RSR style Included