Whenever possible we use picture of the actual part number. Some items do use stock photos provided by the manufacturer.

 

The EXO series from Big Gun� came about from a realization of the need for a bigger and better muffler that could handle the huge demands of the larger, more powerful sport ATV motors. Their performance-driven, quality-made full system exhausts are handmade in the United States from high-quality stainless steel and feature a unique hexagon-shaped aluminum muffler that allows for significantly more volume that delivers a louder but more tolerable deep sound that is sure to make even a grown man feel like a kid again.

Big Gun™ was founded by 3-time AMA National Champion Mike Young Jr. in 1997 so that he could take advantage of his knowledge of what worked on the track and use it to manufacture high performance high quality exhausts for the MX, ATV, and SXS markets. Big Gun™ has one of the largest four stroke product lines available so you should always be able to find the right pipe for you. Big Gun EXO Exhaust Muffler Pipe Full System was developed by an R&D team who has been working tirelessly to stay innovative and ahead of the competition in design and on the track.

NOTE: All Big Gun exhausts are for closed course use only and are not intended for use on the road. Big Gun exhausts are NOT LEGAL for sale or use on pollution-controlled vehicles in the state of California.

EXO Series Exhaust Full System:

• Lightweight brushed aluminum muffler
• TIG-welded reinforced muffler bracket(s)
• 304 stainless steel mid pipe/head pipe
• Significant horsepower and torque gains
• Black powder-coated stainless steel end tip
• Removable screen-type spark arrestor included
• Stamped 304 stainless steel coned inlet for more volume
• Hexagon shaped large diameter housing for more volume
• Internal sound wave altering technology for a deeper but tolerable exhaust tone

• Base Color: Silver
• Material: Aluminum
• Surface Finish: Brushed
• Mounting Hardware Included: Yes
• Features: Removeable Spark Arrestor
• End Cap Color: Black

• 2011 Yamaha YFZ450X --
• 2010 Yamaha YFZ450X --

CLICK HERE to check out our other NEW YFZ450X parts.

Make sure to check out our other used YFZ450X parts.

 

Domestic Shipping

• Orders containing multiple items may ship separately in multiple shipments. They may not arrive at the same time and may take another couple of days for the complete order to arrive.
• Free and Flat Rate Shipping is limited to lower 48 States only.
• We ship Mon-Fri excluding Holidays.
• We use FedEx, UPS, and USPS. Which shipping method is used for your order is at our discretion. If you have a physical address and a PO box please provide both.
• Please make sure the shipping address is correct at checkout. Our shipping process is highly automated and shipping does not have access to ebay messages.
• Once the order is sent to a pull sheet at one of our warehouses we are NOT ABLE to change the address or cancel the order. It will ship to the address provided at checkout.
• If you make an error in the address or wish to cancel an order send an official CANCEL TRANSACTION REQUEST IMMEDIATELY. We do hold order a few minutes to allow for then. Our fulfillment process is automated and we will not see a direct message until it is to late to cancel it.
• Hawaii, Alaska, Puerto Rico and APO addresses must contact us prior to purchasing item for a shipping quote first. Shipping fees to APO, AK, PR and HI will be calculated individually and added to customer invoice prior to paying for the item.
• Make sure you have packages delivered to a secure location. We can not cover packages stolen after delivery.

International Shipping

• International shipments will ship through the ebay Global Shipping Program.
• PirateMX Powersports is not responsible for taxes and duties which may be due on your shipment.
• Please note that all prices are in U.S. Dollars. Any fitment provided is for US Spec models.

Returns Policy

Returns are accepted up to 30 days from purchase date

• Items must be in new condition, no returns are accepted on used or installed items. If the products show any signs of installation, we cannot accept the return.
• Item must be in original undamaged unopened packaging.
• Any and all returned electrical items that are not sealed will be considered USED and not resell-able and not eligible for a full refund.
• Use our shipping packaging to ship back the item, DO NOT tape the label directly to the original manufacturer’s box.

 

Contacting Us for a Return

Items purchased on ebay must be returned using the return process. Send us a message via ebay for help starting a return.

Warranties

All items are new in box unless listed otherwise. Any warranties are from the products manufacturer.

In the unlikely event you need to make a warranty claim, we will assist with the process. Products are limited to the manufacturer's warranty..

To contact us about a warranty related issue..

• Send us a message via ebay..

• WARNING: This product contains chemicals known to the State of California to cause cancer and/or reproductive harm, and birth defects or other reproductive harm.