Okay, I did a search but didnt really find the information that I wanted so here is goes...


I am boring and resleeving my old motor and wanted to get a complete exhaust system to help with the power
I used to run a Supertrapp... OLD pipe, don't even know model, but its in rough condition, don't even know if the carb was jetted right

currently I am looking into 4 different systems, but I havent really heard anything to help me decide between them...

specifically I am looking for the largest low to mid power gain, but I would also like a nice loud/deep sounding pipe, I know most are tunable, so this isnt crucial

Complete System: $425
• Big Gun EVO X Series pipes come standard with mild steel with ceramic coating, a vortex insert, race tools packing, and a spark arrestor screen.
• Complete system includes both headpipe and silencer.


Complete System: $358
• The DMC Alien Warrior System features a stainless steel tig-welded two-step headpipe. The exclusive DMC Alien Pulse Chamber provides stump-pulling torque and a substantial total horsepower gain. Almost 5 pounds is saved over the stock system. This complete DMC Dual System is not designed to be used or combined with your stock exhaust system. This system can be ordered with or without U.S. Forestry approved spark arrestor.


Complete System: $499
• All Fat Boy 4 Exhaust Systems come 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.
Optional Accessories
#FB4-4A250 $49.50 Bolt-On Turndown (required for spark arrestor usage).
#XYZ $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.
• Larger C/S sprocket advisable in hard pack terrain or on with 18" tires.
• 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 manufacturer and developer of this product. DRI has designed this product to be the top ATV 4-Stroke exhaust on the market.
• Following are a number of features that make up the Fat Boy 4 line up. All systems are tested in all elements possible.
• CNC Bent 308 stainless steel headers, mid-pipes and tail sections. Standard finish; brite 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 rebuildable 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.


Complete System: $405 Hi-Flow / $440 Power Bomb
FMF Titanium 4 Anodized for 86-04 Yamaha Warrior: $180

Stainless FMF Mid Pipes for 86-04 Yamaha Warrior: $90

SS Hi-Flow Header: $135

Power Bomb Header: $170


• Full titanium racing exhaust system with huge weight savings along with substantial performance gains
• Fully tunable with modular end caps that allow for easy replacement which allow the tuner/racer to effortlessly shape the powerband
• 3 modular end caps are available; the standard hi-flo 2", an optional smaller 1-3/4" for increased traction control and a spark arrestor module for forest legal applications
• Must be used in conjunction with Mid Pipe
FMF MID PIPE
• Mid Pipe not pictured above but is available in stainless or titanium construction
• Stainless steel version offers identical performance traits as the titanium but is more economical
• The titanium mid pipe compliments the full Titanium 4 system; totally lightweight and designed for the highest levels of performance


OKAY... furthermore

Is getting a larger or different carbuerator worth the cost in conjunction with a bored out motor and aftermarket exhaust system??
I know that larger carbs run between 300-400$ is there anyone that sells them cheaper or different carbs that are less expensive...?

BTW just to add, I do have an oil cooler to keep things a little cooler... just to let anyone know to enhance input

thanks for everyones time and consideration

 

powerbomb is the only header tht shows a considerable gain.
supertrapp ids 2 is a good tunable muffler
and white brothers has a large carb kit for around 200