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Mini Dragon Group (ages 6-7)

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Cbr 600 Exhaust Diameter Chartl

Cbr 600 Exhaust Diameter Chart

The Honda CBR600RR is a popular sport bike that has been in production since 2003. One of the features that makes this bike stand out is its exhaust system, which consists of a header, a mid-pipe, and a muffler. The exhaust system affects the performance, sound, and appearance of the bike, and many riders choose to upgrade their stock exhaust with aftermarket options. However, not all exhausts are compatible with the CBR600RR, and one of the factors that determines the compatibility is the exhaust diameter.

The exhaust diameter is the measurement of the inner diameter of the exhaust pipe at different points along the system. The exhaust diameter can vary depending on the design and purpose of the exhaust. For example, some exhausts have a tapered design, where the diameter gradually decreases from the header to the muffler, while others have a constant or stepped design, where the diameter remains the same or changes abruptly at certain points. The exhaust diameter can affect the flow rate, pressure, and velocity of the exhaust gases, which in turn can affect the power output, torque, fuel efficiency, and sound quality of the bike.

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There is no definitive answer to what is the best exhaust diameter for the CBR600RR, as different riders may have different preferences and goals for their bike. However, there are some general guidelines that can help riders choose an appropriate exhaust diameter for their bike. The following chart shows some examples of common exhaust diameters for the CBR600RR and their pros and cons:

Exhaust Diameter



Stock (45 mm)

-Optimized for stock engine performance and emissions-Quiet and legal for street use

-Heavy and bulky-Restricts airflow and reduces power at high RPMs

50 mm

-Increases airflow and power at high RPMs-Improves throttle response and sound quality

-May require tuning or fuel management system to avoid lean condition-May be too loud or illegal for street use

55 mm

-Maximizes airflow and power at high RPMs-Ideal for racing or track use

-Requires tuning or fuel management system to avoid lean condition-May lose low-end torque and fuel efficiency-May be too loud or illegal for street use

As you can see from the chart, there is a trade-off between performance and practicality when it comes to choosing an exhaust diameter for the CBR600RR. A larger diameter may increase power at high RPMs, but it may also require additional modifications, such as tuning or fuel management system, to ensure optimal engine performance and avoid damage. A larger diameter may also produce a louder and more aggressive sound, which may be desirable for some riders, but it may also attract unwanted attention from law enforcement or neighbors.

Therefore, riders should consider their personal preferences, riding style, budget, and local regulations before deciding on an exhaust diameter for their CBR600RR. Riders should also do their research on the specific exhaust models they are interested in, as different brands and models may have different features, specifications, and reviews. Some of the popular brands that offer aftermarket exhausts for the CBR600RR include Yoshimura, Akrapovic, Leo Vince, Two Brothers, and Scorpion. Riders can also consult online forums, blogs, videos, or magazines for more information and advice on choosing an exhaust for their bike.

I hope this article was helpful and informative. Thank you for reading!


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