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Yamaha Warrior Fat Boy 4 Complete Exhaust System — Duncan …
https://www.duncanracing.com/4-stroke-exhaust/fb4-ey3500
Fat Boy 4 4-Stroke Power Exhausts are a proprietary product of Duncan Racing International, Inc. DRI is the sole manufacture and developer of this product. DRI has designed this product to be the top ATV 4-Stroke exhaust on the market. Fat Boy 4 Features CNC Bent 308 stainless steel headers, mid-pipes and tail sections. Standard finish; bright finish.
Fat Boy 4 Replacement Packing — Duncan Racing
https://www.duncanracing.com/4-stroke-exhaust/fb4-rp950-rp165
Fat Boy 4 Replacement Packing. from 29.95. Each Fat Boy 4 repacking is built to a specific size to match your Fat Boy 4 muffler. Packing is Specially Designed to Reduce Noise. FB4-RP950 Repacking (9.5”) Fits 11” Muffler $29.95. FB4-RP110 Repacking (11.0”) Fits 12” Muffler $29.95. FB4-RP135 Repacking (13.5”) Fits 15” Muffler $29.95.
Custom Colors for Fat Boy 4 Exhaust Systems — Duncan Racing
https://www.duncanracing.com/4-stroke-exhaust/fb4-a3pco
These customs options are at an additional cost to the base price for the Fat Boy 4. Example: Honda TRX 450 Fat Boy 4 Complete Exhaust System- $649.00. With custom colored 3-piece package option - add $129.95. FB4 Exhaust system & Custom Color option total =$778.95. *All custom color options are by special order only. CALL TO ORDER.
Duncan Racing
https://www.duncanracing.com/
Paul Turner Racing products & porting, Fat Boy 4 power exhaust, Powerheads, Pyramid Reed Valves, PreJetted Keihin Carbs, and more. ... Duncan Racing is more than just a high-performance ATV company, we are a family with a deep history and reputation build on hard work, dedication, commitment, experience and integrity. ...
Fat Boy 4 Turndown — Duncan Racing
https://www.duncanracing.com/4-stroke-exhaust/fb4-4a250
Fat Boy 4 Turndown. 39.95. Bolts on to all Fat Boy 4 Rear End Caps. Machined to accept optional spark arrestor screen. Redirects exhaust note, quiets sound level by 2-3 db's. Attaches with (3) 5mm stainless button head allen screws (Included) Turndown Seals to Fat Boy 4 with O-Ring (included) Brushed Aluminum Finish. CALL FOR DETAILS/AVAILABILITY.
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