I have a Megan Racing cat-back, non-resonated exhaust system fitted to my '06 R50, and I'm getting vibration/reverb from it when driving in wet, rainy conditions. This only happens between 57 to 60 mph. Anyone else experienced the same situation/

 

I have the resonated version in a 2004 and it drones between 65/75. Different conditions different results with the way and intensity it vibrates or drones. I was thinking this might settle as it got through a maybe break in period if there is a such thing for an exhaust, but it doesn't seem to be the case. If i'm not in the mood for it the sound can be pretty unenjoyable. I will add that at 80 it sounds pretty sweet, also i find going up hill or incline in 5th gear is when its at its worst in drone sound....rain or shine its pretty much the same, its more speed sensitive ( with the resonated ) version....

 

Usually I like the sound of the Megan, but it did take some getting used to after the OE exhaust. This vibration only occurs in wet conditions @ 57/60, and it makes the hand brake handle rattle!