I had been running the 27mm TB/manifold. Cameron suggested the 30mm for even more improvement. And he was right. The HP/Torque off throttle to WOT improved even over the 27mm. Especially from part throttle up it saw improvement. The 30mm is single throttle cable. But that was just fine with me. The return is even snappier with just the pull cable. Highly recommend

Every product from CJR is top notch !

I bought this kit just expecting a little extra umph… wow was I wrong. This COMPLETELY changed my bike. I raced a stock crf110 and absolutely smoked it. By atleast 10 bike lengths. Not to mention the 2 hour turn-around time for the ECU flash. Quit waiting and buy it.

Bikes feels way faster now ! Recommend to everyone !

great service

Very quick to get it done and returned to us. Great customer service. Speedy response go any of my questions

The bike runs great. The new exhaust sounds awesome. Thank you for flashing the control module.

Bike runs amazing after doing some motor work wouldnt go any other direction then cjr

Grate service works amazing

Sounds awesome

Fast shipping and good quality parts

It did everything I needed from the ECU tune. Deadspot at 6-7k fixed..check, pulls way better from the get go and they all the gears ..check, revs to 9500 check and fun factor increased 10 fold checkkkkkkk. Met my every expectation.

They are the best

They were the best

Odered a new ecu with custom tuning. The bike starts up great, idles and flat out rips. Thank u CJR!