STAGE 1 - 8000 C-TEC2 ENGINE - Precision EFI
STAGE 1 - CATALYST 858
STAGE 1 - CATALYST 858
STAGE 1 - CATALYST 858
STAGE 1 - 8000 C-TEC2 ENGINE - Precision EFI
STAGE 1 - CATALYST 858
STAGE 1 - CATALYST 858
STAGE 1 - CATALYST 858
PRECISION EFI

STAGE 1 - CATALYST 858

858-STAGE1

$749.99
/

Stage 1 for the 858 engine 2025+ 

+10HP gain at 8000rpm 

+15hp gain on mid-range 

No hardware required, no modification 

We suggest adding a set of adjustable weight to reach the target.

Ramp adjustment starting point for a stock spring and helix combination in good condition, to achieve the target RPM. 
Please note; a modified spring and helix combination affects the final result. 
Therefore, we cannot provide settings for every application.

The test should be performed as follows: accelerate quickly but gradually to avoid track slippage. While accelerating, wait for the RPM to stabilize, then take an RPM reading. If the RPM is too high, add weight; if too low, reduce the weight. 
Note that surface conditions vary and affect RPM.

- Target RPM: 8100 - 8200 
- PEFI Adjustable Ramp Kit Dalton Qa3-73
- Set to a total weight of 75g to 78g (use purple or blue Loctite). 
- A screw head flush with the top of the hole (at the heel) is the most common setting.

 

choose between two options

go to a Dealer

Get your ECU Flash by a simple plug into the diagnostic of your powersport vehicle by one of our certified dealers

See Dealer locator

Send-in

You can send us your ECU.
You only need to fill out this form.

Fill ecu send-in form

you hesitate ?

Did you know that whenever you want you can improve your stage !
You just have to pay the difference between both stages !
This gives you the flexibility to start with the first stage option and upgrade to a more powerful stage without having to pay the full price again.

Did you know you can also add a warranty to your modified vehicle ? 

click here

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