Stage 2 Exterminator Kit // 2018-2024 Wildcat XX

Speedwerx Stage 2 Exterminator Kit

Our Exterminator Kits are designed to offer you the biggest bang for your buck! What we do is put together a group of components that we have found to work the best on each and every machine to get the best performance at a reasonable cost. The Stage 2 Exterminator Kit for the Wildcat XX comes with our Speedwerx L2 Series Stainless Steel Slip-On Exhaust, Stainless Steel Exhaust Header, Hypershift Clutch Kit, High Flow Air Intake, and Stage 3R ECU Flash. The flash eliminates the need for a piggyback fuel controller and adds some cool features including Raised Speed and Rev Limiters- see full details below. You can also select the optional Q6 Stainless Steel muffler is you want a quieter, maintainance free muffler.



Stock XX vs. Speedwerx Stage 2 Exterminator Kit-

Update 4/12/18:
The Textron Off Road Wildcat XX’s are starting to show up at dealers around the country, and naturally everyone is wanting to know more about Speedwerx performance upgrades as the machines filter out into the hands of the consumer. We’ve been working on a number of bolt-on parts and dyno testing many different configurations over the past few weeks, and we were pleasantly surprised to see the XX pull 130hp for a stock baseline number, 5hp more than the factory rating. Even better yet, our Stage 2 Exterminator Kit delivered 142hp with power and torque increases over the whole RPM range. Take note of the huge gains at the lower RPM range as well, 12-18hp more over a 1000rpm+ spread, that translates into more grunt down low to get you out of the hole quicker- it’s really noticeable just by the seat of your pants when you mash the pedal. All testing was done with 87 octane fuel, so you can save a few bucks at the pump too.

- Speedwerx L2 Stainless Steel Slip-On Muffler - The L2 (Light n' Loud) Series Stainless Steel Slip-On Exhaust is designed to increase power, add acceleration and throttle response, lose weight and give your machine a new deeper, throatier sound. With this exhaust, you are also eliminating the catalytic converter that is inside the OEM muffler- that means more air flow for better performance, and less heat retention for cooler engine compartment temps. You also shed a total of 14.6lbs with this exhaust on the XX.

These mufflers have a brushed stainless steel shell with a welded inlet end cap, and a steel core with packing material and a built-in spark arrestor. They are 100% rebuildable with all inner parts being removable. They come standard with a stainless steel turn down, but aluminum endcaps with a natural finish or anodized black, red, blue, gold, or green are available as an upgrade as well. These are assembled as ordered due to these options, so please allow 2-3 business days before shipment. 

- Optional Speedwerx Q6 Stainless Steel Slip-On Muffler- The Q6 Slip-On Muffler is only 2-3db louder than stock and the fully welded, baffled stainless steel design means there's no internal packing for quiet, maintenance free power. It also gives you a nice 10.9lb weight loss on the XX as well.

Muffler Comparison: 

Stock 97dB @4500 rpm - 112dB @9000rpm - 20.8lbs with heat shields 

   L2 106dB @4500 rpm - 114dB @9000 rpm - 6.2lbs installed = 14.6 lbs savings 

  Q6 102dB @4500 rpm - 111dB @9000 rpm - 9.9lbs installed = 10.9 lbs savings 

The difference in the dB readings at 4500 on the Stock and Q6 parts can be misleading as the sound of the Q6 is much more friendly and tolerable compared to stock. The Q6 also has a different tone compared to stock- the stock rattle / vibration sound is gone with the Q6- this does not show up on the decibel meter but anyone who is sensitive to this sound will notice the difference right away.

- Speedwerx Stainless Steel Exhaust Header- Our header features stepped diameter equal length primary tubes, and 3-into-1 merge collector to maximize overall power and performance. All joints are hand-prepped and sand rolled prior to the purge TIG welding process, so you get great looking welds and the smoothest surface possible inside of the tubes- just like our race car headers that have won hundreds of races across the country.

- Speedwerx Hypershift Clutch Kit- The Hypershift Clutch Kit includes our Machined Weights with an Adjustment Kit, H5 Alloy Secondary Spring, and a Custom Cut Helix. These kits are designed and rigorously tested by the staff at Speedwerx to insure that it will increase your machine’s acceleration, backshift and all-around performance.

- Speedwerx High Flow Air Intake- This High Flow Air Intake offers better filtration and more flow with a larger filter than the stock setup. It bolts right into the stock location with no fabrication required.

- ECU Programming-These programs have been in the works for some time now, and we're finally ready to let the cat out of the bag! They have some cool features many have been looking for, most notably the Raised Speed and Rev Limiters in addition to the added Power and Performance without the need for a separate fuel controller. Using the same technology as our popular and proven programs for the Arctic Cat 9000 Series Snowmobiles, we also have Flash Tools available for Dealers and Performance Shops to program machines on the spot via the factory diagnostic port so there's no risk of damage from cracking the ECU open or addtional wait time shipping. As always, any consumer or dealer can send the ECU directly to Speedwerx for programming- we typically program and ship within one business day for minimal downtime as well.

Standard Features For All Programs:

• Reworked Fuel and Ignition Tables for Added Power and Performance using 91 Octane Pump Fuel
• Horsepower Increased Over Stock (up to 7 whp when combined with slip-on exhaust). 
• Rev Limiter Raised to 9800
• Speed Limiter Raised to 120 MPH
• Left Foot Braking enabled so you can operate the throttle and brake at the same time without going into limp mode
• Race Start feature enables you to start in gear without pushing the brake
• Cooling Fan Activation temps lowered 15° for a cooler running engine
• Drive By Wire Pedal Map revised for more aggressive throttle response
• Diagnostic Port Flash - your ECU does not have to be opened up or even removed from the machine! 

NOTE: If you have purchased our ECU Programming and wish to make a change, Stage 1-3 programs may be  upgraded to the Stage 3R for $100. 

You must send your ECU box to us for programming! Please include a copy of your invoice or a note with your return address and order number. The return shipping cost for the service of your choice will be added when purchasing online. 

Ship to:

Speedwerx, Inc.
20195 Greystone Avenue
Forest Lake, MN 55025

These features may also be installed by a dealer or anyone with the Speedwerx Flash Tool! Please give us a call at 651-982-6020 for more information on getting setup as an authorized dealer for the Speedwerx ECU Maps and Dash Upgrades.