sonic9

i have the q300 dual with test pipe...sounds absolutely amazing to me...quite when you want it to be.. slight drone between 3-4k like everyone says but I personally like it lol..and amazing sound when you get it on...def. recommended! The single will be a bit louder of course but shouldnt be too much of a difference

s2k_chimp

I installed the Q300 single last night with the Invidia 70mm TP. I've only put about 15 miles on it, so I'll give my initial impression.

Cabin noise is obviously louder than stock. I'm noticing drone over 3K rpms, but only when accelerating. I'm curious to see how the drone changes as the exhaust breaks in over the next few hundred miles.

I'll keep this thread updated with my opinion of the exhaust as I put more miles on it.

If anyone has any questions, please let me know.

CarbonYellowJ's

let us know how it is after break-in. I had 5 different exhausts on my S2k and I think my J's 60RS was the best overall for me of the bunch (no clue about gains)