Muffler for Nissan Note E11: how to choose, replace and improve

Owners Nissan Note E11 (2006–2013) sooner or later face the need to repair or replace the muffler. This part is subject to corrosion, mechanical damage and natural wear, especially in Russian roads and climate. But how to choose a high-quality muffler without overpaying for the brand? Should we consider analogues instead of original spare parts? And is it possible to improve the exhaust sound without compromising existing standards?

In this article we will look at all the nuances: from signs of malfunction and diagnostics to step-by-step replacement instructions. Let's take a special look at tuning the exhaust system - what the law allows and what is subject to fines. You will also find a comparison table of prices for original and non-original mufflers, tips for extending service life and answers to frequently asked questions from owners Note E11.

Signs of a muffler malfunction on a Nissan Note E11

The first symptoms of muffler problems often go unnoticed until the situation becomes critical. Pay attention to the following signals:

• 🔊 Increased exhaust noise — the muffler stops extinguishing sound waves, the engine begins to “growl” even at idle speed.
• 💨 Extraneous knocks under the bottom - often caused by fallen off internal partitions or burnt-out walls.
• 🚗 Vibrations in the cabin, especially at low speeds, may indicate depressurization of the system.
• 🌫️ Black or blue smoke from the exhaust pipe - a sign of incomplete combustion of fuel due to impaired gas removal.
• 🔥 Smell of burning or gasoline in the area of the rear bumper - a signal about metal burning.

If these symptoms are ignored, the consequences can be serious: from increased fuel consumption by 10–15% before exhaust gases enter the passenger compartment through cracks in the body. In the worst case scenario, dry grass catches fire under the car in the summer or an oxygen sensor fails due to improper exhaust composition.

⚠️ Attention: On Nissan Note E11 with engines HR15DE And HR16DE a faulty muffler can cause an error P0420 (low catalyst efficiency), even if the catalyst itself is fine. This is due to a change in back pressure in the system.

Original vs analogs: what to choose for Nissan Note E11

Original muffler from Nissan (article no. 20620-4M000 for model E11) guarantees a perfect fit and durability, but its price often exceeds 15,000 rubles. The alternatives are cheaper, but not all of them are worth considering. Let's look at the pros and cons of each option.

Muffler type	Service life	Price, ₽	Pros	Cons
Original (Nissan)	5–7 years	14 000–18 000	Perfect compatibility, stainless steel	High price, long delivery
Bosal (article 263-102)	3–5 years	6 000–8 500	Good quality, availability	Thin metal, may burn faster
Walker (article 20620)	4–6 years	7 500–9 000	Reinforced design, quiet sound	Rarely in stock
Eberspächer (article 934356)	5+ years	9 000–11 000	Stainless steel, European quality	More expensive than most analogues
Budget (for example, Febi, Meyle)	1–3 years	3 000–5 000	Low price, quick replacement	Often rust within a year, poor sound insulation

For Nissan Note E11 with mileage over 150,000 km, we recommend paying attention to Eberspächer or Walker — they optimally combine price and resource. If your budget is limited, Bosal will be a reasonable compromise, but be prepared to replace it after 3-4 years.

Step-by-step instructions for replacing the muffler

Replacing the muffler with Nissan Note E11 does not require special equipment, but will require an inspection hole or a lift. If you decide to do this yourself, prepare:

• 🔧 A set of sockets and keys (required for 14 mm And 17 mm).
• 🔨 WD-40 or a similar composition for unscrewing stuck nuts.
• 🛠️ New O-rings (item no. 01455-4M000).
• 🧤 Gloves and safety glasses (dust and rust are dangerous to the eyes).

The process itself takes 1.5–2 hours:

1. Remove the heat shield (if any) under the engine - it is secured with 3-4 bolts.
2. Treat with WD-40 nuts securing the muffler to the resonator and exhaust. Wait 10–15 minutes.
3. Unscrew the clamps and the coupling bolts holding the muffler in place. Some force or leverage may be required.
4. Remove the old muffler, pulling it back. Be careful - fragments of partitions may remain inside.
5. Install a new muffler, starting from the front. Tighten the nuts crosswise to avoid distortion.
6. Check for leaks - Start the engine and inspect the connections for leaks.

Make sure you have all the tools|Buy new O-rings|Treat the nuts with WD-40 in advance|Prepare the jack or hole|Take photos of the location of the fasteners-->

⚠️ Attention: On Nissan Note E11 With an automatic transmission, the muffler is located closer to the driveshaft. When replacing, it is easy to damage the CV joint boots - cover them with cardboard or cloth.

Exhaust system tuning: what is allowed and what is not

Many owners Nissan Note E11 want to give the car a sporty sound, but not all methods are legal. According to GOST R 52033-2003, the exhaust noise level should not exceed 96 dB for passenger cars. Exceeding may result in a fine of up to 500 rubles (Article 12.5 of the Code of Administrative Offenses), and in case of repeated violation - deprivation of rights.

Let's look at popular tuning options:

• 🔇 Direct flow muffler — replaces the standard one with a model without internal partitions. Gives +5–10 hp. and loud sound, but exceeds noise standards by 10–15 dB.
• 🔄 Replacing the resonator to sports (for example, Magnum) - the sound becomes deeper, but remains within the law.
• 🛠️ Installing the nozzle on the pipe — visual tuning, does not affect sound and power.
• 🔥 Removing the catalyst - prohibited by environmental legislation (fine up to RUB 2,500). An alternative is to install a flame arrester.

The safest option for Note E11 — replacing the muffler with a model with a perforated pipe (for example, Remus or Sprint). It gives a pleasant sound without the risk of penalties. If you want radical changes, consider electronic exhaust valve (For example, Borla), which allows you to switch between quiet and sport modes.

What happens if you remove the catalyst?

Removing the catalyst on the Nissan Note E11 will lead to:

1. Increased exhaust toxicity (you won’t pass inspection without cheating).

2. An error appears P0420 on the dashboard (solved by flashing the ECU or installing a fake).

3. Increase in exhaust noise by 3–5 dB.

4. Risk of burnout of the exhaust manifold due to elevated temperature.

How to extend the life of a muffler: prevention and care

Average muffler service life Nissan Note E11 - 4–6 years, but with proper care it can be increased to 8–10 years. Here are the key recommendations:

• 🚿 Washing in winter - salt and reagents corrode the metal. Wash the bottom once every 2 weeks, especially after snowfalls.
• 🔧 Checking fasteners — once every six months, tighten the clamps and replace the rubber hangers (article no. 20628-4M000).
• 🛢️ Anti-corrosion treatment - apply special compounds (for example, Liqui Moly Unterbodenschutz) on welds.
• 🚗 Avoid overload — the muffler suffers when towing or transporting heavy loads.

Pay special attention condensate, which accumulates in the muffler in winter. During short trips, it does not have time to evaporate, which accelerates corrosion. The solution is to drive 10–15 km at high speed (3,000–3,500 rpm) once a month to burn off the moisture.

Prices and where to buy: market overview 2026

Muffler cost for Nissan Note E11 Varies by region and retailer. Below are the current prices at the beginning of 2026:

Spare part	Original (₽)	Analogue (₽)	Where to buy cheaper
Rear muffler	14 000–18 000	5 000–9 000	Exist, EMEX
Resonator	8 000–12 000	3 500–6 000	Autoall
Graduation corrugation	4 500–6 000	1 800–3 000	Autodoc
Seal kit	1 200–1 800	400–800	Any spare parts store

When purchasing, check:

• 📦 Availability of certificate — fakes are often sold without documents.
• 🔍 Metal thickness — for high-quality mufflers it is at least 1.5 mm.
• 📏 Compliance with article number - for Note E11 with engine HR15DE And HR16DE they are different!

If you buy a used muffler, inspect it for internal corrosion - shake the part: if you hear the noise of rolling pieces, it means that the partitions are destroyed.

Common replacement mistakes and how to avoid them

Even experienced craftsmen sometimes make mistakes that shorten the service life of a new muffler. Here are the most common:

1. Reusing old seals — they tan and do not seal the joints. Always buy new (item no. 01455-4M000).
2. Tightening the nuts - can lead to deformation of the flanges. Tighten to 30–40 Nm.
3. Ignoring hangers — if the rubber fastenings are torn, the muffler will hit the body.
4. Mismatch on soot - on Note E11 with a particulate filter (if installed), a special muffler is required.

Another typical problem is incorrect assembly sequence. Connect the muffler to the resonator first, then to the exhaust, and only tighten the hangers last. This will prevent distortions.

FAQ: Answers to popular questions

Is it possible to drive with a leaky muffler?

Technically possible, but not advisable. In addition to noise, this leads to:

• Exhaust gases entering the cabin (risk of CO poisoning).
• Increased fuel consumption (up to 1–1.5 l/100 km).
• Overheating of the exhaust manifold due to a violation of gas removal.

If the hole is small (up to 5 mm), it can be temporarily welded or sealed heat-resistant sealant (For example, Abro ES-332).

Which muffler is best for Nissan Note E11 with LPG?

When using gas, the exhaust gases are hotter, so a muffler made of stainless steel with a wall thickness of at least 2 mm. Optimal options:

• Eberspächer 934356 — specially designed for HBO.
• Walker 20620 - has a reinforced design.

Avoid budget analogues - they burn out in 1-2 years.

How much does it cost to replace a muffler at a service center?

The cost of work depends on the region:

• Moscow and St. Petersburg: 2,500–4,000 ₽.
• Regions: 1,500–2,500 RUR.
• Urgent replacement (within a day): +30–50% to the price.

If you change only the rear part (without the resonator), the cost is reduced by 30-40%.

What should I do if there is a knocking noise after replacing the muffler?

The knocking noise is usually caused by one of the following reasons:

1. The fastenings are not tightened properly - check the nuts and clamps.
2. Torn hangers - replace the rubber fasteners (part no. 20628-4M000).
3. Body Contact - Check clearances, especially around the rear bumper.
4. The muffler is defective - the internal partitions could have fallen off during installation.

If the knock is metallic and radiates into the cabin, most likely the problem is engine mount or box, not in the muffler.

Is it possible to install a muffler from a Nissan Note E12 on an E11?

No, these models are not compatible. U Note E12 (2013–2020) different exhaust system design:

• Different pipe diameter (50 mm versus 45 mm for E11).
• Another attachment to the resonator.
• Changed location of suspensions.

Installing an E12 muffler will require modification of the mountings and may interfere with the operation of the oxygen sensor.