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Big Gun

Big Gun 08-10 Polaris RZR 800/RZR 800S/RZR 4 Power Box

$318.99
$271.14 In Stock Pre-Order Sold out
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1-4 DAYS DELIVERY

100% ORIGINAL AND QUALITY

24 MONTHS GUARANTEE

  • Description
  • Shipping and Refund
  • Reviews
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.

Our Return Policy:

We want you to be completely satisfied with your purchase from Chief Motorsports. If for any reason you are not satisfied, you may return most new, unopened items within 30 days of delivery for a full refund or exchange.

To be eligible for a return, items must be in their original packaging and in the same condition that you received them. Some items are exempt from being returned, including custom orders, special orders, and used items. These items are sold "as is" and are not eligible for return or exchange.

To initiate a return, please contact our customer service team by email or phone to request a Return Merchandise Authorization (RMA) number. We will provide you with instructions on how to return the item(s) and a prepaid shipping label (if applicable).

Please note that original shipping charges are non-refundable and the customer is responsible for return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance as we cannot be responsible for items that are lost or damaged during transit.

Once we receive the returned item(s) and confirm that they meet the return requirements, we will process the refund or exchange within 7 business days.

We reserve the right to refuse returns or issue partial refunds for items that do not meet the above return requirements.

If you have any questions about our return policy, please don't hesitate to contact us.

Our Warranty Policy:

Chief Motorsports does not cover manufacturer's warranties. All warranties and guarantees are provided directly by the manufacturer. If you have any issues with a product that you believe is covered under warranty, please contact the manufacturer directly for assistance.

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