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Breaker II | Slip-On Exhaust

Honda CMX 1100 Rebel

MILLER Breaker II Slip-On Exhaust for Honda CMX 1100 Rebel

More sound. More style. Street-legal.

Rediscover your Honda CMX 1100 Rebel with the MILLER Breaker II – a powerful slip-on muffler made from high-grade stainless steel. This exhaust not only delivers a rich, deep chopper sound but also features a slim, striking design that visually enhances your bike.

Thanks to the official Euro 5+ approval with engraved certification number, the Breaker II is fully street-legal – for all CMX 1100 models from model year 2025.


Technical Highlights

✅ Horsepower +1.2 HP
✅ Torque +1.7 Nm
✅ Weight -1.5 KG


Your style – your end cap

Choose from three interchangeable end caps to match your style and your bike. The Breaker II slip-on exhaust also features a matte black heat-resistant coating – for a premium look and long-lasting durability.


Mount. Start. Ride.

Installation is a breeze: the original header with catalytic converter remains in place – just remove the stock muffler, mount the Breaker II, and ride off legally. All necessary mounting hardware and your approval certificate are included.

Features "Breaker II | Slip-On Exhaust"
Features
Brand: Honda
Emissions standard : Euro 5+
Engine (displacement): 1100cc
Model: CMX 1100 Rebel
Model code: SC87
Model year: 2027, 2026, 2025
Videos
YouTube
IMPORTANT NOTICE

Note on using your new exhaust system

Please read the following information to ensure the best riding experience:

⚠️ If you ride for a long time at very low RPM, especially with DCT models, the engine warning light may come on. This can happen because of higher exhaust back pressure. It can cause different readings from the lambda sensor behind the catalytic converter, also called a Lambda 2 error.

➡️ Do not worry: this is not a defect. With normal or faster riding, this usually does not happen. If the warning light comes on after riding at low RPM, it normally goes off again by itself after about 200 km of normal or faster riding. Please have the error checked by a Honda dealer. The reason is the slightly smaller inner volume of our Breaker II silencer compared to the original silencer.

✅ We have already improved our Breaker II silencer. In our test rides, this prevented the engine warning light from coming on in more than 90% of cases. From 2026, our new Stormbreaker double-pipe silencer will be available for Honda CMX 1100 models. With this silencer, the described issue will no longer occur.

We kindly ask for your understanding. These changes are necessary because of the Euro 5+ standard.

For any questions, we are happy to help.

📧 info@miller-exhaust.com

📞 0049 (0)9132 / 745380

1 from 1 Reviews

Average rating of 5 from 5 stars


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1 Rating

10 April 2026 08:54

Rated 4.5 stars by 5 from 5

Perfectly complements the bike

I recently installed the Breaker II tapered matte black exhaust on my Honda CMX 1100 Rebel, and the whole experience has been excellent from start to finish. Installation was straightforward, thanks to the clear instructions, and everything needed for mounting was included in the package.

The exhaust itself is beautifully finished, with a sleek matt black look that perfectly complements the bike. In my opinion, it’s a huge improvement over the somewhat bulky stock exhaust—it really refines the overall appearance.

But the real highlight is the sound. It’s deep, rich, and full of character. When downshifting, it regularly produces those satisfying pops and bangs, which are an absolute pleasure to hear and add a lot to the riding experience.

Another important factor for me—and ultimately what made me choose this brand—is that the exhaust remains road-legal in terms of sound. That’s crucial, especially when planning motorcycle trips abroad where regulations can be strict.

All in all, it’s a fantastic upgrade that enhances both the look and feel of the bike without compromising on legality.

Yes, both are coated. However, you can also choose polished manifolds with black silencers, or vice versa.

You can easily reorder the service card here: Go to the service card

As soon as we receive your payment, we will send you the service card straight away.

To legally ride with your MILLER exhaust system and a different air filter, you must have the exhaust system entered in your vehicle documents in combination with that air filter. Our exhaust systems are always tested with the original air filter.

No, that is not possible. We only deliver with the legal dB absorber fitted.

After the silencer has been in use for a certain time, the insulating wool can settle. We are talking about a service life of approx. 50,000 km.

Yes, MILLER Exhaust exhaust systems comply with all regulations in the EC countries and Switzerland, so you can enjoy the MILLER sound without worries (+5 dB(A) above the stationary noise level stated in the vehicle registration document; see U.1).

Yes, our coating is heat-resistant up to 1200 °C. Please note that after the exhaust system is first installed, the coating must first “burn in” at around 300 °C. After that, the coating is fully cured and durable for decades.

The products are manufactured in Germany – exclusively from stainless steel and aluminium – to ensure consistent and exceptional quality.

The road closure in the Lech Valley applies to motorcycles with a registered stationary noise level of more than 95 dB(A). You can find your stationary noise level in your vehicle registration document under item U.1.

  • If your value is higher, you may not ride on these roads.
  • If the value is exactly 95 dB(A) or lower, these roads remain open to you.

What matters is therefore the stationary noise level registered in your vehicle documents. If you have fitted an approved, EC-tested MILLER Exhaust system in proper condition, you may of course continue to ride on these roads, provided your registered stationary noise level does not exceed the 95 dB(A) limit.

An aftermarket exhaust system approved under the EC directives does not change your registered stationary noise level. So if your vehicle documents show a stationary noise level of 95 dB(A) or lower, you may fit an exhaust system approved under the EC directives and continue to ride on these roads.

If a value above 95 dB(A) is registered, you may not ride on these roads between 15 April and 31 October. Unfortunately, we cannot offer an exhaust system that reduces the stationary noise level to below 95 dB(A).

Verification is carried out in accordance with TÜV International Certification procedures for auditing, certification and verification and is monitored regularly.

1. Your exhaust system “feels” too loud
Extra-quiet dB absorbers are available for our MILLER exhaust systems. You can order them here: dB absorber Quiet

2. Your exhaust system is too loud according to an official test report

A: Was the tolerance taken into account and were the measurement guidelines followed?
You have a legal tolerance of +5 dB(A) on the registered stationary noise level. Please first check whether the legal tolerance was taken into account and whether the following conditions were met when your exhaust system was measured:

  • Microphone at a distance of 50 cm and at a 45-degree angle
  • Exactly half the rated engine speed
  • Engine fully warmed up
  • No sound-reflecting objects within a radius of 3 m around the vehicle
  • Level, tarmac surface

If these conditions are not met, the measurement result is very likely to be inaccurate. If you have doubts about the accuracy of the measurement, you can have it verified by a second testing station.

B: If all conditions were met and the measurement appears to be correct, please proceed as follows:

You bought the item directly from MILLER Exhaust:
Please email the following information/files to info@miller-exhaust.com:

  • Copy of the proof of purchase/order
  • Copy of the test report
  • Copy of the vehicle registration document
  • One or two photos of the removed absorber(s) (total size: max. 10 MB)

As soon as we have all the information, we will look into the issue and get back to you promptly.

You bought the item from one of our dealers:
Please contact the dealer you bought the product from directly and send them the information/files listed under B. Unfortunately, we cannot process your request directly in this case.

Our MILLER exhaust systems are double-walled to prevent discolouration caused by heat. However, discolouration can still occur at the connection and cone of the silencer. It can easily be removed with MILLER polishing paste and a microfibre cloth.

We use the colour RAL 9004 Signal Black, matt.

You can get it from our general importer in Switzerland:
GoodDrive AG – Mr Thomas Albrecht
Im Grund 28, 5014 Gretzenbach, Switzerland
Phone: +41 62 893 05 02
www.ksmt.ch

No, our exhaust systems are approved for your motorcycle model. No entry in the vehicle registration document is necessary.

Yes, you can reach our sales team on +49 9132 745380.

Yes, simply send your order including your address and phone number to info@miller-exhaust.com.

  • Prepayment (by bank transfer) with 2% discount
  • DHL cash on delivery
  • Amazon Pay
  • Credit card
  • Klarna
  • Bancontact
  • EPS
  • iDEAL
  • P24
  • SEPA direct debit
  • Apple Pay / Google Pay
  • PayPal

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