MCXpress USA

03/13/2026

Repost from 2020

10/20/2025

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03/26/2025

02/28/2025

New CNC Intake Plenum from MCXpress for our 250 Hp Skidoo 900R Kit.
This replaces the stock plastic air box so we can run higher boost pressures.
It will have 3 extra injectors controlled by our Gen 5 EFI controller to supply the extra fuel needed at high boost pressures.
We will now test with our 900R 210 kit to see if there is performance gain at lower boost pressures.
The air intake is slightly shorter than the stock stacks for better high rpm power.
And the inside diameter is coned up inside for better flow.
The stock elservo throttle is located at the same place as stock, so no modification is needed.

02/09/2025

01/27/2025

Skidoo
https://www.facebook.com/reel/1151753379899732

12/10/2024

These Scoots were in for service a while ago

10/23/2024

Look what showed up!
Not for sale!
Final Edition from Yamaha
2025 Yamaha SRX Sidewinder Turbo
302 of 998 built and almost none this far out west.

09/03/2024

We have just received another shipment of SKIDOO MCX 900R 210 Hp upgrade kits. Shop Early $1395 us. We ship to Canada!

05/18/2024

MCXpress has developed a Turbo kit for Polaris Tatin and Nordic PRO 4S. Many of the Polaris Dealers in Sweden were given the opportunity to test drive the first two Nordic's built last season. We have received many orders so far. Horsepower number I'm hearing so far that it about doubled from stock

05/16/2024

We have made the installation of our MCX 900R 210 Hp Kit easier this season.
You do not have to Drill and Tap throttle body now.
This is how we made it easier to get pressure to the MCX EFI-box, and without changing the position of the plenum temp sensor.
A special CNC-made ni**le that replace the screw that holds the sensor.
You must first drill the bottom of the hole.
If you at the same time make some pressure inside the box, the chips from the drilling will blowing out.
We also incorporated the ground wire and last season we added a plug on the positive red wire.
The kits I have in stock now all have all the new updates.