
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
For Your Every Summer RSVP, with Code: SUMMER15
Description
Big Gun 14-21 Polaris SPORTSMAN 570 Power BoxThe Big Guns TFI (Throttle and Fuel Injection) Power Box delivers an effortless performance boost by optimizing throttle mapping and fuel delivery. Simple to install and tuned for broad compatibility, this plug and play module sharpens throttle response, smooths power delivery, and enhances mid range torque, all without sacrificing reliability. Designed with durability in mind, the TFI Power Box features rugged construction and weather resistant
The Big Guns TFI (Throttle and Fuel Injection) Power Box delivers an effortless performance boost by optimizing throttle mapping and fuel delivery. Simple to install and tuned for broad compatibility, this plug-and-play module sharpens throttle response, smooths power delivery, and enhances mid-range torque, all without sacrificing reliability. Designed with durability in mind, the TFI Power Box features rugged construction and weather-resistant sealing to withstand tough conditions.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
4.5 ★★★★★
Based on 234 reviews
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Product Reviews
★★★★★ 5
Ribbed sleeves and bottom
Way nicer than a t-shirt for the same money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
★★★★★ 5
Comfortable, Light Weight, Good Looking
Delivered quickly, exactly as pictured. The shirt fits well. I like the sweater bottom as opposed to a normal t-shirt bottom. The shirt looks dressier. A good value.
I'd buy again.
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Reviewed in the United States on August 2, 2025
★★★★★ 5
Surprised at the quality and style for the price point
I love the shirt and love the quality and love the way it fits. For the price point, it’s a really good T-shirt. I can be a brand ambassador if you guys would like. I do like the clothes a lot. Style, value, comfort and softness all great! I actually have 3 shifts and one pants from this brand and love all of them. Contact me to be a brand ambassador.
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Reviewed in the United States on February 27, 2026
★★★★★ 5
Dressy knit shirt
Nice and soft. Great
Look to wear under a suit Jacket.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Good buy
Nice quality shirt . It fits well and material is soft . Definitely recommend buying again .
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Reviewed in the United States on January 8, 2026
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