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2 IN / 1 OUT
Standard Silencers
By OE Match
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Complete with Chrome tail pipe. Painted mild steel 2 in / 1 outlet

Fits:
Porsche 911 1965-73 Non Impact Bumper Cars
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111102505
The product you are viewing cross references to these numbers
Standard Silencers
OEMatch 2 IN / 1 OUT Standard Silencers — Flow, Response, Refinement
Many owners search for genuine or OEM silencers; OEMatch offers practical alternatives for Porsche exhaust systems. These 2 in / 1 out standard silencers are supplied as replacement items for compatible exhaust layouts and are selected to support application-specific needs for Porsche models.
Available Types
- Standard 2 in / 1 out replacement silencer for 2 in / 1 out exhaust layouts fitted to Porsche models
Understanding OEMatch 2 IN / 1 OUT Standard Silencers
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original 2 in / 1 out standard silencers. OE (Original Equipment) refers to parts matching original specifications for the 2 in / 1 out standard silencers and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM 2 in / 1 out standard silencers engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. OEMatch provides a wide selection of Porsche components, including exhaust hardware and replacement silencers, catalogued to support repair and restoration across many model years.
Benefits Include
- Direct-fit replacements engineered to match original-spec dimensions and tolerances
- Help preserve exhaust routing and back-pressure characteristics where specifying a like-for-like silencer is required
- Retain original mounting points and connection types to align with existing hangers and sensor locations
Why 2 IN / 1 OUT Standard Silencers Wear and Fail
- Corrosion and perforation from moisture, road salts and exhaust condensate
- Internal packing or resonator material degradation causing noise or restriction changes
- Physical damage from impacts, failed mounts or exhaust system misalignment
The Importance of Replacing with OEMatch 2 IN / 1 OUT Standard Silencers
A correctly functioning silencer maintains exhaust integrity, helps control noise characteristics and reduces the risk of exhaust leaks that can affect emissions or introduce fumes to the cabin. Replacing a degraded silencer with a part selected for Porsche models supports continued operation and helps prevent secondary damage to adjacent components such as hangers, pipes and sensors.
Advantages
- Cost-effective alternative to hard-to-source items while matching original-spec dimensions for consistent fit
- Made to fit original mounting points and clearances to simplify installation
- Selected for Porsche models and documented to aid correct identification and replacement