Arrow Thunder Dark Aluminum Exhaust Muffler For Honda CRF 250 L / Rally (17-18) / CRF 300 L (21-24)

New motorcycle models are increasingly being equipped by manufacturers with very small exhaust mufflers, often installed in odd positions. This makes it necessary, even for aftermarket products, to use increasingly compact mufflers. Arrow has therefore decided to introduce a compact and versatile rhomboidal muffler shape, initially developed for off-road exhausts, to the street bike sector as well.
Thus the Street Thunder line was born, a fusion of technology and design, certainly among the most beautiful and appreciated exhausts on the market.
They are available with a titanium, aluminum or carbon fiber body while the rear caseback, with a completely renewed design, is available in stainless steel or carbon fiber.
To compensate for the reduction in available volume, significant research into sound-absorbing materials and countless tests on the track and in the R&D department were required to define the best technologies and materials to use.
The Street Thunder silencers, which can be installed in the slip-on and complete kit versions with Arrow collectors, are light and high-performance.
They are approved terminals, except for exceptions that can be verified in the individual assembly.

Specific For:

Honda

• CRF 250 L (2017 - 2018)
• CRF 250 Rally (2017 - 2018)
• CRF 300 L (2021 - 2024)

Technical Data Sheet:

• Body material: dark aluminum
• Back case material:aluminum
• Silencer internal material: stainless steel
• Frame mounting type: welded mount
• Body length (mm): 350.00
• Graft diameter (mm): 45.00
• Outlet diameter (mm): 40.00
• CO Probe: No
• Lambda probe: No
• dbKiller Presence: Yes
• Weight (Kg): 1.93

WARNINGS: Please read the technical information note available in the "Documents" section

ECE approval: Yes(approval relating to noise and power control)

NB: To be combined with a specific Arrow Collector Kit for each motorcycle model

N.B: Compliance with both regulations is guaranteed only if the original catalytic system is maintained, or an Arrow silencer and catalytic system approved according to the applicable regulations are installed.

ATTENTION: For correct assembly, we recommend that you go to an authorized workshop or a qualified mechanic.

IF YOU HAVE DOUBTS ABOUT COMPATIBILITY, CONTACT US FOR MORE INFORMATION