NOW AVAILABLE

We Have Specifcally Built a Trail Sea Level Pump Gas Head and High Altitude Pump Gas Head

Our only drop on kit thanks to the Arctic Cat design!

The Catalyst chassis is so easy to ride and gets up on the snow but felt the engine could use more excitement! This will be worth voiding your warranty!!   Inspired by the legendary mid-2000s big bores, the 1030cc will bring back that aggressive torque curve, delivering a crisp hit from a standstill and serious pull through the entire powerband.

Key Features

• Bolt on 30HP over stock with Stock Pipe!!
• Pump Gas and 100 octane option
• Utilizes stock crank
• Drop on top end – utilizes stock crankcase and crankshaft, no machining
• Can run stock injection and air induction systems
• Option of  55 mm BDX throttle body air box mods to breather are recommended
• Twin pipe setup has been run on pump has at altitude making 208HP

What’s Included in the Kit

• Two Cast Big Bore Cylinders to fit on stock crankcase and crankshaft
• Billet head with changeable domes and head bolts
• Two forged piston kits
• Two power valves and power valve covers
• Two precision efi power valve links
• Base gasket, head gasket and stainless exhaust gaskets
• Exhaust studs
• New PV seals and Tombstone bushings 
• No robbing parts from stock cylinders, everything provided 

Optional Add-Ons

• Upshift403 Flashing device works with both CAT and POLARIS $475
• Cluth Kit $650
• Jaws Cans (same as website)

  Black high heat paint:  Trail $365.  Race $315.  Rowdy $315.  

  Titanium Cerakote: Trail $395.  Race $365.  Rowdy $365.

• BDX Air Box $275
• BDX 55mm Throttle Body $745
• Jaws Twin Pipes - Special Order Makes 208HP on Pump Gas, more on 100 Octane - Requires an open airbox and blocks off the hood connection for outside air - $2100.00

International Orders - FOB Shipping Terms

All international shipments are sent FOB Origin (Canada).  Ownership and responsibility transfer to the buyer once the shipment is handed over to the carrier. 

Upshift403 is not responsible for customs delays, import restrictions, duties, tariffs, taxes, brokerage fees, or other charges imposed by the destination country. These costs are the sole responsibility of the customer.

Shipping, Duties, and Refused Deliveries

Customers are responsible for all shipping costs, duties, tariffs, taxes, brokerage fees, and any other charges associated with their order.

If a shipment is refused, abandoned, or returned due to non-payment of duties, tariffs, taxes, brokerage fees, or failure to accept delivery, the customer will be responsible for:

• All original shipping charges

• Any return shipping charges

• Any customs, duties, tariffs, brokerage, storage, or handling fees incurred

• Any additional fees charged to Upshift403 by the carrier or customs authorities 

These charges will be deducted from any approved refund. If the charges exceed the value of the refund, the customer remains responsible for the outstanding balance.

No refund will be issued until the returned shipment has been received and all associated fees have been assessed.

Refund Policy

Refunds are considered on a case-by-case basis. If you wish to return an item for any reason, please contact us directly to discuss your request.

All approved refunds are subject to a 10% restocking fee due to Shopify fee applied to refunds. Original shipping charges are non-refundable, and return shipping costs are the responsibility of the customer unless otherwise agreed upon.

We appreciate your understanding and will do our best to ensure your satisfaction.