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exhaust system for Citroën 2CV 2CV6

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2CV6, tailpipe. Reproduction. Brand manufacturer from Europe. Suitable for Citroen 2CV6 + 2CV4

Dyane

2CV6, elbow pipe (S-pipe). Good reproduction. Brand manufacturer from Europe. Without fixing

material! Suitable for Citroen 2CV6 + 2CV4, Dyane, AMI and Mehari.

2CV6, rear silencer (long silencer). Good reproduction. Brand manufacturer from Europe. Without

mounting material! Suitable for Citroen 2CV6 + 2CV4, Dyane, AMI and Mehari.

2CV6, exhaust clip 49mm, for transition manifold to heat exchanger and transition heat exchanger to

the front muffler. Suitable for Citroen 2CV6 + 2CV4.

2CV6, front silencer. Brand manufacturer from Europe. Suitable for Citroen 2CV6, Dyane 6, AMI and

Mehari. According to our more than 35 years of experience, the only front silencer for the 2CV that fits really well.

2CV6, exhaust from high-grade steel, completely with front muffler. For Citroen 2CV6. The mounting

material is provided (unfortunately not made of stainless steel)!

PDF file available PDF FILE

2CV6/Dyane, exhaust completely with mounting material. For Citroen 2CV6. Good reproduction

Manufacturer: Walker

2CV6, heat exchanger, left + right (1 pair). Good reproduction made of stainless steel. The heat

exchangers are like the original, and also have the foam on the flaps. But the 2CV with stainless steel heat exchanger sounds slightly different (louder, more metallic). Attention: The heat exchangers fit only on the Citroen 2CV6 (Dyane, Mehari, AK, AMI8), until 1990, not suitable for 2CV4.

2CV6, heat exchanger, left + right (1 pair). Good replica. The heat exchangers are like the

original, and also have the foam on the flaps. The heat exchangers are black powder coated. Attention: The heat exchangers fit only on the Citroen 2CV6 (Dyane, Mehari, AK, AMI8), until 1990. Not suitable for 2CV4.

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How the Exhaust System Works on the Citroën 2CV6

Every internal combustion engine produces a characteristic "exhaust sound" due to the pulsating gas flow from the cylinders. To achieve this, it is necessary to reduce the sound energy of the exhaust flow. There are two ways to reduce sound: absorption and reflection. These processes primarily take place in a muffler. Aside from its sound-dampening function, the exhaust system is also exposed to extreme conditions. The fuel-air mixture in the cylinders heats up suddenly to as high as 2,400 °C. As a result, the gas expands and shoots into the exhaust system at supersonic speeds. This produces explosion-like banging noises, which must be reduced by 50 dB(A) from the engine exhaust valve to the end of the exhaust system. In addition to these temperature and pressure stresses, the exhaust system must absorb vibrations and oscillations originating from the road surface. Furthermore, the exhaust is exposed to corrosion from hot gas, acids, splashing water, and salt water.

Exhaust System of the 2CV6 and Dyane 6

The exhaust system of the Citroën 2CV6 remained unchanged throughout its production run. It consists of 4 exhaust components:

  • Front silencer: Mounted directly to the exhaust manifold (our part number 11001).
  • S-pipe: Connects the front silencer to the rear silencer, mounted on the left under the front fender (our 11002).
  • Rear silencer: Mounted on the left side of the vehicle floor, under the driver’s seat on the floor panel (our part 11003).
  • Tailpipe: Ends at the rear left under the bumper (our part 11004).

Only the tailpipes differ. On the standard 2CV6 and Dyane 6, only the long version is available, which ends at the rear left under the bumper (11004).

Are the exhaust tailpipes the same on the AK400?

The Fourgonette (AK panel van) and the Mehari had a short tailpipe that exits to the side in front of the left rear wheel. Due to their slightly longer wheelbase, the panel van versions of the Dyane had a longer short tailpipe that also ends in front of the rear wheel.

2CV6 Exhaust: Brand-Name Quality

For the 2CV6, we use only exhaust systems from the manufacturer Walker (as long as they are still available). These have proven their quality to us over the past 38 years. The fit of the front silencer (which can sometimes be a source of frustration with other manufacturers) is also really good.

Are all the mounts for the exhaust system also available?

Of course, all clamps and rubber mounts for the exhaust system are also available from us. We also carry a stainless steel exhaust system with approval for the 2CV6. And naturally, we also offer complete exhaust systems, including all clamps and mounting rubbers (11020). By the way, the exhaust system on the Dyane is identical in construction to that of the 2CV6.

Installation of the 2CV6 Exhaust System

The 2CV’s exhaust system is designed so that no gaskets are required. Furthermore, the connecting pipes of the front silencer are neither too short nor incorrectly bent (at least not with our front silencers). Citroën achieved ample installation clearance in the 2CV by using half-clamps.

To install the pre-silencer, it is necessary to carefully loosen the front heater bulbs (heat exchangers) on the exhaust manifold. The heater bulbs can be adjusted up, down, and sideways. In the next step, hook the front silencer onto the transmission, taking care not to screw it tight. Align the connecting pipes of the front silencer with the heater cores and carefully screw them on loosely using the 49 mm clamps. Caution: Do not tighten the clamps!

In the next step, the heating bulbs are tightened back onto the manifold, and only then are the clamps for the front silencer tightened. After that, the rest of the exhaust system is mounted under the vehicle and loosely bolted starting from the S-pipe at the front silencer (47 mm exhaust clamp). The exhaust system is thus loosely mounted so that it can still be aligned. Make sure that the mounting rubber mounts are not under tension (especially those on the rear silencer).

Once everything is aligned, begin securely bolting the S-pipe to the front silencer. Now tighten the remaining exhaust clamps, and finally, properly tighten the mounting rubber mounts. Please note that only 47 mm clamps should be used when bolting the front silencer to the S-pipe. Make sure that all other half-clamps are 49 mm in size. Do not mix up the 49 mm and 47 mm exhaust clamps! Otherwise, leaks may occur!