The exhaust system of the Alfa Romeo 105 series carries the exhaust gases from the engine to the rear and is used in the Giulia, Berlina, GT Bertone and Spider 105/115. It includes the manifold, downpipe, centre silencer, rear silencer, mounts, rubbers and seals. As a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models, Alfa-Service carries a wide range of exhaust parts. Engine-near parts are partly similar across the series, while the rear pipe routing and rear silencer are model-dependent.
Alfa Romeo 105 Exhaust System at a Glance
The system begins at the manifold, which collects the exhaust gases from the cylinder head, and leads via the downpipe to the centre silencer and rear silencer. Mounts and rubbers fix the system to the underbody, while seals provide tight connections. The front, engine-near area is often similar across the series, since the same base engine is used. The rear pipe routing and rear silencer, by contrast, follow the body and differ between coupe, saloon and Spider.
Exhaust Part Types
The range is divided into the following part types:
- Manifold
- Downpipe
- Centre silencer
- Rear silencer
- Mounts and fixings
- Rubbers and hangers
- Seals and connecting elements
Shared Across the Series or Model-Dependent
The manifold and the front area of the system are often similar across the series, since they are closely linked to the engine and follow the engine variant. The rear pipe routing, the centre and rear silencers, by contrast, are model-dependent, because length, routing and suspension are determined by the body. The Spider, GT Bertone and Berlina therefore differ in the rear section, even though the engine-near area is comparable. Mounts, rubbers and seals are often usable across models but should match the respective system. The Giulia, Berlina, GT Bertone and Spider 105/115 thus share the engine-near area, while the rear pipes and rear silencer are to be chosen by model.
In practice it makes sense to consider the system from front to rear: manifold and downpipe by engine, centre and rear silencer by model and body. Mounts and rubbers are chosen to match the suspension, seals to match the connections. Comparing with the existing system on the vehicle, in particular the rear pipe routing, prevents wrong purchases and ensures the parts match.
Notes on Part Selection
Decisive are the model, body and engine. The manifold and downpipe follow the engine variant, the centre and rear silencer the model and body. Mounts, rubbers and seals are chosen to match the system. Anyone who first establishes the model and engine variant and checks the rear pipe routing on the vehicle can put together the manifold, downpipe, silencers, mounts and rubbers reliably.
In the interplay, the exhaust system carries the exhaust gases from the cylinder head to the rear. The manifold collects the gases and passes them to the downpipe, which leads to the centre silencer and on to the rear silencer. Centre and rear silencers reduce the noise level, mounts and rubbers carry the system on the underbody and decouple vibrations, and seals provide a tight fit at the connections. Mounts, rubbers and seals are among the regularly renewed items, since they are subject to mechanical and thermal stress.
For assignment, the front area is often similar across the series, since the manifold and downpipe are closely linked to the engine and follow the engine variant. The rear pipe routing, the centre and rear silencers, by contrast, are model-dependent, because length, routing and suspension are determined by the body. The Spider, GT Bertone and Berlina therefore differ in the rear section, even though the engine-near area is comparable. Mounts, rubbers and seals are often usable across models but should match the respective system.
In practice it makes sense to consider the system from front to rear: manifold and downpipe by engine, centre and rear silencer by model and body. Mounts and rubbers are chosen to match the suspension, seals to match the connections. Comparing with the existing system on the vehicle, in particular the rear pipe routing, prevents wrong purchases. The Giulia, Berlina, GT Bertone and Spider 105/115 share the engine-near area, while the rear pipes and rear silencer are chosen by model.
As a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models, Alfa-Service assigns the exhaust parts clearly by assembly and model family. The range covers the whole 105 series, so that the manifold, downpipe, centre silencer, rear silencer, mounts, rubbers and seals for the Giulia, Berlina, GT Bertone and Spider 105/115 can be found reliably. The engine-near area can be determined via the engine variant, while the rear pipe routing and rear silencer are narrowed down via the model. This classification makes selection easier, because the system can be put together systematically from front to rear, with mounts, rubbers and seals often usable across models.
Categories and Related Guides
The following areas help with classification and selection:
- Alfa Romeo 105 spare parts - overview
- Exhaust system - main page
- Engine
- Fuel system
- Spider 105/115
- GT Bertone
- Giulia/Berlina
FAQ
Which parts does the 105-series exhaust system include?
Manifold, downpipe, centre silencer, rear silencer, mounts, rubbers and seals.
Are exhaust parts usable across the series?
The engine-near area is often similar, while the rear pipe routing and rear silencer are model-dependent.
Why does the rear section differ?
Because length, routing and suspension are determined by the body, and the Spider, GT Bertone and Berlina differ.
What determines the manifold and downpipe?
The engine, since these parts are closely linked to the engine.
Is Alfa-Service a workshop?
No. Alfa-Service is a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models and does not carry out repairs.
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