JollyGQ

Thanks for the info! Nice to know you felt a difference and you didn’t just do what everyone else does and make it sound like a 10hp gain or anything. I`m not expecting my bike to have much more power I just want it a little smoother throttle response. I have that same problem with trying to figure out if it’s just a placebo effect or not. I have a fuel manager and it feels like a totally different bike when I remove my muffler and readjust my FI. Sometimes I think it’s just the sound. BTW I like the engine/underglow did that to mine few months ago but it’s hard to get a good pic.
If you could post your mileage gain/loss that would be greatly appreciated!

How did the aTRE work for you?? Props on getting 72k mi!