| Fat Boy 4 Complete Exhaust Yamaha Raptor 350 |
Part Number: FB4-EY3350
Price: $499.00
In Basket: None
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Product Information:
*For additional information on purchasing your Fat Boy 4 exhaust
in a Bolt-On Kit (with air cleaner kit and associated components)
Click Here
**For installation instructions Click Here
***For Repacking instructionsClick Here
Custom Color options are available by SPECIAL ORDER ONLY
Must call DRI to order colored option
To view color options Click here
*To view Fat Boy 4 Accessories Click Here
*To view Fat Boy 4 Replacement Parts Click Here
All Fat Boy 4 Exhaust Systems with FREE jet kit 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 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.
Larger C/S sprocket advisable in hard pack terrain or on with 18" tires.
*On DRI Retail direct sales jets for stock OEM carburetors are supplied at no charge.
Performance: 15% HP Gain peak; 15 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 repack able.
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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