Mopar catback exhaust

[jssprink]

I put on a mopar catback exhaust and mopar cold air intake on a 09 challenger rt automatic. I have noticed increased gas mileage and when conditions are right, faster 0-60 times. I have noticed that there is significant drone noise and the noise inside the car is really loud when I go over 65. Does anyone have these mods and do you have the same issue?

[darrello]

Jss, what system do you install? I've been looking at the Borla SS one. But I don't want that droning your talking about. Alittle more noise would be ok.

[BootCamp]

The Corsa system is pricey, but no drone.
Just installed one in my car this past weekend - great sound and improved performance without the drone. Very nice! Easy install too - everything fit / lined up with minor adjustments.

[darrello]

Thanks for the info Bootcamp. Haven't heard anything about the Borla yet. Friend of mine's son just got a new Camaro and put a cat back on it. He says it drones alot, but the boy likes it. Guess I am getting old...hopefully like fine wine, not like a road apple!

[BootCamp]

A lot of the problem is the size of the pipes. 3" tend to resonate more than the 2 3/4". The bottle resonators (if equipped) and the mufflers also play a big part in the cancellation of drone.

I'm closing in on 50 and while I still love the true musclecasr sound of a catback system, I'd prefer to do without the headache resulting from driving for more than 30 minutes in a car that drones at highway speeds.
The Corsa is nice because it's almost inaudible at cruise, but barks like it should under throttle. I also love the backpressure "gurgle" of the system when downshifting.

BTW - I found the Corsa Cat-Back system (14138 - for SRT8's) for $1,169.10 including S&H. I thought that was one h#ll of a good price.

[darrello]

BC, where did u get the Corsa? I see the Borla at Anything Auto f/$1300 and they usually have some kind of knock offs so that would put it in the ballpark of the Corsa.

[BootCamp]

Check this post, Bud (scroll to the bottom/last post):
http://www.dodgechallenger.com/forum/showthread.php?t=5008