TBI ECU for 2023-2025 300 SX / XC / TX / TC

Instead of removing and sending in your ECU to us for mapping (which you can do here), you can directly purchase an ECU from us that has already been mapped. You can always mail your stock ECU core to us within 35 days of receiving your new mapping, and we will credit you back $400 for the core.
 
We Offer a 30 Day Satisfaction Guarantee!
Return your mapped core to us within 35 days of receipt for a full refund
 
Advantages For TBI Bikes:
 
Keeps them from BLOWING UP. That's a big one.
 
These bikes are too lean in the mid and top end, so they like to seize up and ruin cranks.
 
Adding the extra fuel needed, throughout the throttle range, lets you add fuel AND oil.
 
You can now run a 40-50:1 oil ratio and still have all the fuel you need.
No bogging , no flat spots and pulls harder from idle to wide open.