Original 911 heat exchangers rust from the inside out, and replacements that fit properly are hard to find. The Eisenmann Heat Exchanger Exhaust for the F-Model 911 is a factory-fit counterpart that flows and sounds better than the original.
Choose the header diameter to suit your engine build: 38mm for stock and mild engines, 42mm or 45mm for higher-output builds.
Eisenmann Classic Line for the F-Model 911
TUV approved, hand built in Germany with rigorous flow testing, with every component crafted by hand.
What's Included
- 1 x Eisenmann heat exchanger exhaust in the selected header diameter
Key Features
- 38mm, 42mm or 45mm header diameter
- Factory-fit replacement, TUV approved
- Flows and sounds better than the original
- Hand built in Germany
- Part number: P91130.WT38
Vehicle Fitment
Fits the following 911 F-Model engines:
- Porsche 911 2.0L, 2.2L and 2.4L (1965-1973)
- Porsche 911 Carrera 2.7L (1973-1976)
Emissions: This exhaust does not carry a CARB Executive Order. Check your state's rules for classic vehicles before road use.
Installation Notes
Professional installation by an air-cooled specialist is recommended. New exhaust gaskets and hardware are advised.
- Remove the rear muffler and factory heat exchangers.
- Clean the exhaust port studs and fit new gaskets.
- Install the Eisenmann heat exchangers and reconnect heater hoses.
- Refit the muffler, tighten all hardware and check for leaks.
