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Fat Boy 4 Complete System Honda 250EX
Part Number: FB4-EH25EX
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Fat Boy 4 Honda 250EX Profile
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Fat Boy 4 Muffler 250EX
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Fat Boy 4 Muffler with Turn Down
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Price: $499.00
In Basket: None
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Product Information:
For Fat Boy 4 Instructions Click Here
All Fat Boy 4 Exhaust Systems come with a FREE jet kit (for stock carburetor)included with instruction packet
DRI offers a LIFETIME WARRANTY against defects in materials and workmanship on all Fat Boy 4 systems sold. Warranty is for original purchaser only and is non-transferable. Each system is supplied with warranty registration card that must be read, signed and returned to DRI.
No HQ muffler is available for this model.
Optional Accessories
#FB4-4A250 $39.95 Bolt-On Turndown (required for spark arrestor usage).
#06-554 $17.95 Spark Arrestor Screen.
#FB4-RP950 $19.95 Repacking Kit.
For additional parts see DRI price list for full listing.
Other Required modifications:
K&N Air Filter, Carburetor Re-Jetting.
*On DRI Retail direct sales jets for stock OEM carburetors are supplied at no charge.
Performance: 15% HP Gain peak; 14 bike length gain in a 300 yard acceleration run, average.
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.
CNC machined stainless steel header flanges.
Custom designed .100" wall aluminum extrusion muffler body. Standard finish satin. Polished by special order.
Front and Rear End Caps CNC machined from 6061 billet aluminum.
Muffler mounts CNC machined from single piece of 6061 billet aluminum. Attached to muffler body by heli-arc weld.
O-Ring Seal at tail pipe to muffler joint.
All mufflers completely rebuild able and repackable.
Stainless muffler cores.
Optional (at additional cost) Bolt On Turndown; redirects exhaust fumes and noise toward the ground. Also required for use with spark arrestor. Attaches with 4 stainless screws (supplied) and has O-Ring seal.
All systems are individually marked with their own serial number.
Complete DRI Technical phone support for installation and carburetor jetting questions.
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