550 Performance CRF300L Stock Improved ECU 87 Octane First Impressions

I installed the stock improved 87 octane 550 Performance ECU in my CRF300L. Here's my seat-of-the-pants first impressions.

[@MotorcyclesOffroad]

Welcome to the world of the aftermarket ECU, Haha I have been trying hard to promote 550 performance ECUs on my channel. It was a complete game changer, I got the stage one. You can also remove the carbon can as well, it removes the codes for that I believe.

[@dingbial9796]

Just installed a 91 octane improved stock 550. It's amazing how bad the stock fuel map really is. Big improvement, smooth and much easier to ride. Feels like a different bike now

[@glockmodder]

i did this a few weeks ago and its worth it just for the throttle response in first gear stick i almost could not ride it under 10mph

[@randersson3672]

Hahaha !!! I knew you would NOT leave it stock, because I know the story 😜

[@marcochavane3124]

I'm trying thr Thai ECU first. If it doesn't smooth the throttle enough I'm sending it to 550. Figured it was worth a shot at $100 shipped. Cheaper than the 550 core charge for another ECU. Mainly did it because I was tired of feeling like my right leg is on fire at every red light.

[@patriot1182]

I just installed my new 91 octane stock improved ECU and i find it is much smoother and quicker! It was very easy like you said! Love my Honda CRF 300L!

[@doobielawson702]

Did this to mine, I didn't notice much if any difference. It ran well in stock form. It's not as lean now so that's good.

[@shmack-dab-in-da-middle3960]

Did full race yoshi, DNA air filter and 91 Oct flash now its a rocket!

[@JimmiZero]

Congratulations, you just wasted $150.00

[@tieoneon1614]

You should open up your airbox a little more now, and get a HiFlo filter cheap for $20 now that u got it richer. That should really boost your low/mid range throttle.

[@mikeisland7382]

This thing will be quite a trail monster now with low speed fueling and decent suspension. As always, build what you can't buy. Thanks for sharing.

[@Bobcatz1870]

Thanks for this. It is exactly what I was looking for before pulling the trigger. Ride safe!

[@Rocketman200mph]

Thank you so much for this video. Informative and immediately useful!

[@dickwest6018]

I have to agree. I just did mine. I have 3000 miles on my L and I noticed that at about the 1200 mile mark, the bike felt just better. Broken in. With the 550 ECU, it just added to that added feel. Good video. (I realize I am a year late watching it..........)

[@thepessimisticoptimist9375]

I just ordered mine. Really hoping for the low speed jerkiness to go away great video.. thank you

[@ABQMK2]

You Convinced me. I Just order the stock 87 octane ecu for my 21 CRF300L. The on/off switch for a throttle is killing me. It caused me to lay my bike down once and Broke my clutch lever. Thanks for the info. Good job on the video!

[@josephpotterf9459]

Thanks scoot

[@LynamUp10]

As always, great video and thank you for sharing you knowledge and experience. I’ve installed a full yoshi exhaust and 91 stage 1 ECU from 550 performance. I’m curious, have you still got the snorkel out?

[@MotoVania]

Power increase isn’t amazing, but the throttle response and smoothness is totally worth it

[@jameseaves71]

I’ve just ordered one of these ECU’s. Hopefully it does the trick 😊