Porsche 911 European Racing Headers for 911 3.4 - 3.8 Liter Motors is a GT Racing-sourced European racing header set for classic Porsche 911 builds. Use it when the part choice needs to support a classic 911 plan, not just fill a blank spot on the car.

Exhaust choices affect sound, heat, packaging, service access, and how the flat-six feels under load.

Source-based details

• Source part reference: #911-134.
• Fitment/source pairing: 993 motors in earlier 911 chassis.
• Source measurement: 1 3/4 inches O.
• Average listed weight: 20LBS.

Check before ordering

• Confirm engine displacement, flange pattern, header/muffler pairing, and any required adapters or gaskets.
• Check bumper, valance, rear-panel, and heat-clearance packaging before installation.
• Review local sound and emissions rules before using race-style exhaust parts on the street.

Install note: Test fit before paint, final assembly, trimming, drilling, or welding. Confirm chassis year, body width, adjacent panels, hardware, and intended use before committing.