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The Supersprint 'sport' rear mufflers are a mild but tasteful exhaust upgrade for the MZ4. If you want just a little more of that S54 song to come through to the cabin this is a great choice. They have a very 'European' sound that accentuates the mechanical sounds and leaving a little rumble, especially backing off the throttle. These are tuned muffler set and not off-the-shelf boy racer exhausts.
Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!
section:rear mufflers
connects to:stock center section
tip style:80mm dual round
material:T304 stainless steel
This item fits the following BMWs:
2006-2008 E85 E86 BMW Z4 M Roadster M Coupe
This product was last offered at the strikethrough price on
10-06-2026
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This section includes a set of sport catalytic converters to work with the cat-less Supersprint performance headers. This section replaces the front exhaust ahead of the stock center resonator. The sport cats are designed to be a free-flow design for the least restriction but still providing a catalyzing effect to the exhaust. The less restriction is great for making more peak horsepower and torque. You can pair this section 1 with the Supersprint section 2 that deletes the center resonator and you will get more engine volume and a sporty BMW rasp from the M54 inline-6. These cats have O2 bungs on the backside of the cats so you can extend your oxygen sensors to work with these cats. This will give you a near-stock system that's close to a Euro exhaust layout.
Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!
Supersprint metallic sport catalytic converters are sourced from HJS of Germany. For 30 years HJS has been supplying motorsports teams with sport cats when rules required them. HJS is now a worldwide leader in sport cat technology and performance. Rally cars, German DTM, and Formula 3 all rely on HJS for clean, reliable horsepower. Supersprint works closely with HJS to spec a catalytic converter that is correct for the vehicle and engine package. This allows for a substantial increase in flow but which, at the same time, keeps the environmental specs within European limits. With any high-flow catalytic converter, special software or other work may be required to keep emissions fault codes and check engine lights from displaying. Supersprint catalytic converters are sold for track and other off-road uses only.
NOTE: Supersprint engineers and manufactures complete exhaust systems. This part was designed to be used with the rest of the Supersprint system on this car but may be used on its own. Contact us for more details
This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.
section:section 1 sport cats
connects to:Supersprint headers; Supersprint section 2
material:T304 stainless steel
This part alters or deletes the emissions equipment on your car. Because of this, we require a waiver of emissions compliance to be signed and sent in to TMS. You can download the waiver here.
This item fits the following BMWs:
2001-2003 E39 BMW 525i 530i