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Stage 2 Exterminator Kit // 2017-2023 ZR 9000 / XF 9000 / Yamaha Sidewinder

In stock
Our Stage 2 Exterminator Kit includes an ECU flash to unlock maximum power and performance from your 998 Turbo!

Speedwerx Stage 2 Exterminator Kit 

Our Exterminator Kits are designed to ensure our customers are running the correct combination of parts for their particular model. Our Exterminator Kits are designed for everyday type riding and require premium pump gas. We have grouped different options of our performance parts together to ensure our customers are looking at the correct combination of parts, giving you the confidence that you are getting the best bang for your buck.

Stage 2 Exterminator Kit Includes:

  • L2 Stainless Steel Stage 2 Lightweight Muffler
  • Hypershift Clutch Kit for Arctic Cat / Fast Four Clutch Kit for Yamaha - 0-3,000 Ft. Elevation
  • Black Anodized Aluminum Panel Vent Kit
  • Aluminum Charge Tube Kit
  • ECU Re-mapping- Stage 2 - 250+ hp Pump Gas (Stage 3 - 270+ hp 91/110 Blend, or the Multi-Map Bundle + Dash Upgrade are optional)

The Stage 2 Exterminator Kit is for those that want a basic bolt-on package with the increased power and performance that is only possible with a re-mapped ECU. It features our TIG welded 304 Stainless Steel Stage 2 Lightweight Muffler- after extensive testing, we saw a solid 23hp gain over stock with no mapping or fuel changes, however it bumps up the boost slightly and leans out the air-fuel ratio so our ECU remapping is required to ensure long term reliability. The Stage 2 muffler combined with the Stage 2 ECU re-mapping gets you over 250hp on Pump Gas, and you also have the option to select the Stage 3 re-mapping for 270hp plus on 91/110 Blend, or choose the Multi-Map Bundle + Dash Upgrade to get a selectable, fully adjustable setup right in your stock gauge cluster- see related items below for more details. This package also comes with a Hypershift Clutch Kit to ensure you are putting the power to the ground, an Aluminum Panel Vent kit to keep things cool underhood, and our Aluminum Charge Tube Kit to replace the stock rubber hoses that tend to stretch and get weaker over time. The aluminum tubes also have the added bonus of greater heat dissapation since they are exposed to the cold air, and a cooler intake charge equals more power!

When selecting the option for the Yamaha Sidewinder, you will get a Fast Four Clutch Kit that includes Heel Clicker Weights with an Adjustment Kit, and Primary and Secondary Springs.

NOTE: You must send your ECU to us for re-mapping! If purchasing online, please include a note with your return address and order number. Your order will be held to ship complete after receiving your ECU. The Gauge Cluster must also be sent in if you are purchasing the Multi-Map Bundle + Dash Upgrade.

Ship to:

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

Billy Howard from our Eastern Distributor Howard’s Inc. brought his machine to DynoTech Research where they ran the three maps in addition to the stock baseline and our Stage 1 muffler that does not require an ECU remap. Click here to see Jim’s write-up with the results and some additional notes and tech info- Technical Information

Update 9/22/17- Since we posted information on our new Arctic Cat 9000 / Yamaha SideWinder 998 Turbo ECU Mapping developed by Precision EFI, one of the most asked about features is the Knock Light since it is something no one else is currently offering for these machines. We are proud to be the first in the industry to offer a Knock Light as a standard feature on all maps at no extra cost. Extensive work went into the OEM knock detection feature to make this work better in high boost applications so you will have the safest and most reliable system available to give you a little more peace of mind and a safety margin should you get some low quality fuel. It's simply incorporated into the mapping to appear on factory digital display for a true plug and play installation without the need for external lights or wiring. Check out this video to see it in action...

10/5/17- Billy Howard from Speedwerx eastern distributor Howard's Inc has been using his own Arctic Cat XF9000 as a rolling test bed on the snow, grass, and on the asphalt like you see here. His full-bodied machine with the basic asphalt setup and the stock engine with only our Stage 3 ECU Flash and Stage 2 Lightweight Muffler (271.6hp @16lbs. boost on pump gas as previously shown at DynoTech Research) runs 9.50 @136mph in the 1/4 mile. In the recent AmSnow Shootout, he ran 5.32 @128mph in the 1/8th mile, good enough for the #5 slot on OSDRA's Crazy 8 all-time quickest in the Pro Mod class. Not too shabby for a pump gas trail sled- keep up the great work Billy!

1/18/18- Flash Tools and Multi-Map Bundle + Dash Upgrade now available from Speedwerx and Precision EFI! In addition to the Stage 1-3 ECU Flashes with the integrated Knock Light as we have shown you previously, more advanced features are available right in the factory gauge cluster including multi-map capability, adjustable launch control, and adjustable traction control. The dash upgrade also enables a boost gauge in the stock cluster as well. Also coming is an air/fuel ratio display in the stock cluster with the addition of a wideband O2 sensor, and a stand-alone dash upgrade so the boost and AFR gauges will work with any flash on the market is coming as well. These features can be installed by sending your ECU and Gauge Cluster to Speedwerx, or any dealer who purchases the Flash Tool will be able to perform these upgrades on-site to make the process quick and easy with minimal down time!


2018 XF 9000 Goes 125MPH on the Hillbilly Highway!

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ManufacturerSpeedwerx, Inc.
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WARNING: Cancer and Reproductive Harm-    See Proposition 65 Information for more on this Consumer Product Exposure Warning for residents of California.

These items are intended for closed-course competition only. Alteration of emissions-related components can constitute violation of federal and/or state laws. Substantial fines and penalties can result if used for other than closed-course competition use.