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- USA
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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Factory racing expansion chamber 250-300 (EXC, SX, XC) 23-25Suitable for standard silencers Untreated surface Uncompromising race look Sensitive response Increased performance Improved throttle response and increases in both power and torque Substantial weight saving Saving almost 20% weight compared to the stock expansion chamber (ca. 0,4 kg) Approvals: CCCUO_EU, FIM Factory Racing: USED BY FACTORY RACING Surface: Natural untreated
- Suitable for standard silencers
- Untreated surface
- Uncompromising race look
- Sensitive response
- Increased performance
- Improved throttle response and increases in both power and torque
- Substantial weight saving
| Approvals: | CCCUO_EU, FIM |
| Factory Racing: | USED BY FACTORY RACING |
| Surface: | Natural/untreated |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Great Product
Size: 13, Color: Black Full Grain
2nd Johnston & Murphy comfortable and stylish.
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Reviewed in the United States on December 26, 2025
★★★★★ 5
Great shoes for business casual, corporate travel
Size: 8.5, Color: White Full Grain
Fit true to size
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Very Comfortable Shoes
Size: 11, Color: Black Full Grain
Were purchased as a gift and the wearer says they are the most comfortable shoes he has
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Great shoes
I like these shoes they are comfortable, and look great. Good quality, it fits to its size.
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Reviewed in the United States on May 19, 2025
★★★★★ 1
Mal presentado
Size: 9, Color: Black Full Grain
Un zapato llego con cosido defectuoso
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Reviewed in the United States on October 29, 2025