Hi, So I just ordered the Akrapovic Racing Line for my 2021's MT09 SP and I'm considering remapping/reflashing my ECU but I'm wondering what is the long-term impact on the engine and gearbox. Plus, I would like to know if the DNA Air Filters are really necessary? Will my engine and gearbox...

Hey all, I can't seem to find any reviews on the M4 RM1 full exhaust system for MT-09. I was curious to know about the lack of crosspipe on the headers.... Is this a huge problem for low end torque? I read somewhere that it helps with low end power. Can anyone shine light no this product? Is it...