Best in 7 days
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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Oct 11 - Oct 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Big Gun 99-04 Honda TRX 400EX Rev BoxIf you are looking to swap out your stock CDI box, the Big Gun Over Rev Box is an affordable alternative to highly priced OEM replacement boxes. It increases the overall RPM limit over the stock box and advances the timing curve.
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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 1668 reviews
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Product Reviews
★★★★★ 5
Engine air filter
Style: CA10165
It works perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 5
Good quality
Style: CA10165
Easy to install. Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
★★★★★ 5
Good quality, fits perfect
Style: CA10165
Good quality, fits perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 22, 2025
★★★★★ 5
Excelente
Style: CA10165
Excelente
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Fits good
Style: CA10165
we'll see how well it works, but the filter is the right size, seems made fine, and went in with no trouble.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2025
