2007 engine does not run like 2006 engine.

[timgco]

Originally Posted by finall

Hey Tomp!

Ok, a different diameter exhaust would definitely account for this sound difference! Good call.

Now, I am curious. How did you find out this difference? Did you measure the pipes? If so, what prompted you to do this? Or did a muffler shop discover this for you on a custom exhaust install? I would sure like to know.

I have been cruising the Internet to see what changed from 06 to 07, but an exhaust change is not mentioned anywhere......

Good call Tomp.

There was a thread on this a while back. My 06 to 07 was a little different. This one rattles (heat shield), but is slightly louder than my 06 was...befor ethe CORSA exhaust that is.

If you are getting a rough idle, it may need an update/ calibration. I'd take it in and have them plug it in. It should be runing rougher than the 06.