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Description
Big Gun 99-04 Honda TRX 400EX Rev BoxExperience enhanced performance with the Big Gun 99 04 Honda TRX 400EX Rev Box. Designed specifically for your ATV, this rev box optimizes engine power and responsiveness, giving your ride that extra edge on every trail and track. Manufactured by Big Gun, a trusted name in powersports exhausts, this rev box ensures durability and peak functionality. Easy to install and crafted with precision, it integrates seamlessly with your existing exhaust system,
Experience enhanced performance with the Big Gun 99-04 Honda TRX 400EX Rev Box. Designed specifically for your ATV, this rev box optimizes engine power and responsiveness, giving your ride that extra edge on every trail and track. Manufactured by Big Gun, a trusted name in powersports exhausts, this rev box ensures durability and peak functionality.Easy to install and crafted with precision, it integrates seamlessly with your existing exhaust system, boosting throttle response for a more thrilling ride. Whether you are enjoying casual rides or pushing your ATV to the limits, the Big Gun Rev Box is engineered to enhance your experience with reliable performance.
With an emphasis on quality and efficiency, this product is an excellent choice for enthusiasts looking to upgrade their Honda TRX 400EX from the years 1999 to 2004. It stands out in the Exhaust, Mufflers & Tips category, specifically aimed at powersports exhaust solutions. When you want power, reliability, and a superior ride, look no further than the Big Gun 40-R01 rev box for your ATV.
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
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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
4.3 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 4
Fit as described
Used to install an inner fender liner. Seem a little more fragile than OEM, but suitable for the intended use and much less expensive.
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Reviewed in the United States on November 8, 2023
★★★★★ 5
Fits well, good quality.
Good assortment for the price; clips fit well.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Good
Works great.
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Reviewed in the United States on January 11, 2026
★★★★★ 5
Noticeable Improvement in Engine Smoothness
Size: 150 ml, Pack of 1
I decided to try LIQUI MOLY Valve Clean to help keep the intake valves clean and maintain engine performance, and I’m really impressed with the results. After adding it to the fuel tank and running through a full tank of gas, the engine felt noticeably smoother and more responsive.
It’s very easy to use—just pour it into the fuel tank as directed. I also like that it’s from LIQUI MOLY, a brand known for high-quality automotive additives.
While it’s not a miracle fix for serious mechanical issues, it’s a great preventative maintenance product to help reduce deposits and keep the engine running efficiently. I plan to use it periodically as part of my regular maintenance routine.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Must have.
Size: 150 ml, Pack of 1
Very good product, works great.
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Reviewed in the United States on May 7, 2026