ECU Mail-In Flash Tune / Re-Map Update - CJR Performance

Please list your Year/Make/Model (or previous order number) & include ALL Modifications that you would like the ECU to be updated for.  

CJR Mail-In Tune Update -
- This Tune Update is specifically for those who have already purchased a flash from CJR 
- This Tune Update is solely for customers looking to change tunes or get on the latest available updated tune via mail-in
- This revision service covers the RETURN shipping/handling via UPS for mail in customers. 
- In the text box, please enter ALL the modifications AND fuel type you would like the ECU to be updated to include modifications for us to keep on record. ***

Example - 2019 CRF110 - Decha Intake, 24mm throttle body, CNC Intake manifold, 120cc injector, CJR SS Camshaft, CJR Race Head, DHM Piston, Yoshimura Exhaust 

Interested in adding a dual ignition map switch (Soft/Aggressive), Secondary fuel map (Pump93/E85), or launch control feature? -> CJR RaceSpec Tune Upgrade - Located HERE

Once purchased on the Mail-In Tune Update, please package your ECU up safely and ship it to us at:
CJR Performance
5825 E Hwy 163
Columbia MO 65201

***We can only reflash ECU’s that have previously been flashed by CJR with this purchase option. If you have not previously purchased a tune with us before, you cannot use this option. We do offer a discount for an ECU flash if you want to switch tunes to a CJR Spec Map

****PLEASE ENSURE WE HAVE A TUNE FOR YOUR NEW CONFIGURATION BEFORE SENDING IN YOUR ECU
*** PLEASE CHECK OUT CLOSED DATES PAGE TO ENSURE YOU DO NOT SHIP YOUR ECU WHILE WE ARE AWAY AT A RACE WEEKEND

FOR USA CUSTOMERS - USE CODE AT CHECKOUT "TuneUpdate" to eliminate additional shipping charge, if you are charged shipping, we will refund that back to the original payment method used.

International orders - Please contact us for a shipping quote