hw3__

looking for comments from those who have this system on an AUTOMATIC C6 Grand Sport!!!

Corsa states: "Fits 2005-20xx Corvette C6's with all transmissions. Not acoustically recommended for automatic transmissions (i.e. it will drone)"

1) So it does DRONE!!! but how bad??? those who have this system installed could you state your honest opinion on the resonance you experience at various RPMs???

2) (Assuming you had the NPP exhaust and witness the terrible stock drone on highway use with the valves OPEN!) how would you say the Corsa Extreme's DRONE/RESONANCE compares to the Stock NPP Valves OPEN Drone???

Richie Fazio

I have corsa sport and it doesnt drone. Why not get that instead of the extreme? The sport is plenty loud at wot.

George L

I have a 2011 Grand Sport Convert. with the Coprsa Sport. Love the sound. No drone and not too loud. Also great sound when you "'get on it"

01VETTECOP

He is asking EXTREME not Sport

George L

I wanted to point out the Corsa Sport could be a viable option to the extreme for him!!!

RadarP3C

I have a 2007, automatic that I've had the Xtremes on for almost 5 years now.

In the 1600 to 1800 rpm range you will hear a slight drone. Any higher or lower rpm, no drone. I've heard a lot worse with other exhausts. In 6th gear, this is around 75 mph which is average interstate speed around here.

When on the interstate, just cruising around 75 mph, I usually keep it in 5th gear for two reasons. One, this keeps the rpm's up slighter higher so I have a better response to get out of the way of the many crazy drivers on the road. Two, since I'm cruising at a higher rpm, no drone. I've also not noted any noticeable gas mileage effects by running slightly higher rpm's in 5th gear at 75 mph.

My advice would be to go for the Xtremes. I had them for about 3 months and thought they were nice. Then I put on Kooks headers and then they became great. If you're cruising at a speed/rpm that the slight drone is not manageable to you, shift down a gear.

Richie Fazio

I know but I'm suggesting the sport instead of extreme as it is plenty loud at wot when you want it to be doesn't drone at cruise. Best of both worlds.

7thgeneration

Corsa Extreme with X-pipe = no drone at least with my C-5.

RoadVettes

RadarP3C is correct. I have the Extreme's on my 6spd manual 2009 coupe. The problem is the slight drone in the 1400-1600 rpm range in 6th gear only. This is a typical rpm range for highway cruising. With the manual you just drop it into fifth gear if it bothers you. You can do the same with the automatic, but I guess Corsa just wanted to note it for those that just keep their cars in "D" mode.

Charlie