Borla or Corsa?

[CobraSoze]

I'm seriously considering new exhaust for my 2011 GT500, as the stock sound is too quiet.

I need help deciding...Borla, Corsa or Other?? I'm sure there are other threads on this, so please attach link, but I'm intersted in hearing as many options as possible to help me with this decision.

Which one sounds best, performs best, etc.?

Thanks!

 

[mixxer]

Do headers and leave stock cat back .

 

[stkjock]

You are not going to get any performance gains from an axle back.

Corsa is the only one I've seen every post any type of back to back dyno numbers. They claimed a 14 hp gain on a stock GT500. I had a set on a 06GT and really liked the sound. Nice and muscular, no drone, quite at idle and cruise, scream at WOT.

 

[UnleashedBeast]

Do headers and leave stock cat back .

I agree with this. Axle back mufflers provide no performance gains, only louder exhaust. Long tube headers with an off road mid pipe would provide nice gains and much better exhaust note.

If the OP only wants to change mufflers, then the title should read Drone or No Drone.

Corsa don't drone, Borla has been known too.

 

[CuZzO99L]

Corsa FTW.... I'm just in love with the looks of the 4"tips. But, I do have to agree that leaving the stock mufflers on and changing your mid pipe setup wether it be headers or high flow mids or off road x you would never have thought your stock cans could be so loud... But you will probably need to account for the headers or diff. Mid pipe with a tune.

 

[chevellecobra]

I had Pype Bombs on mine since I wanted something louder. The drone was driving me nuts so I changed to Corsa Extreme's. Now I have a great sounding exhaust that does not drone at all. It just depends on what you want, like others have said. Drone or no drone.

 

[zporta]

i had corsa and loved it!

until i started messing with the cats, then the rasp was more then i liked

 

[09Troublemaker]

Do headers and leave stock cat back .

+1000000000

OR

High flow cats and call it a day. L/T 's would raise the decibels though-
as will the H/F cats.... just not as much

 

[Islandcat]

Stock exhaust with corsa mufflers. Absolutely love them.

 

[CobraSoze]

You are not going to get any performance gains from an axle back.

Corsa is the only one I've seen every post any type of back to back dyno numbers. They claimed a 14 hp gain on a stock GT500. I had a set on a 06GT and really liked the sound. Nice and muscular, no drone, quite at idle and cruise, scream at WOT.

That's interesting as Borla said at least 5% gain, which would be about 25hp :??:

 

[stkjock]

That's interesting as Borla said at least 5% gain, which would be about 25hp :??:

from axle backs alone?

 

[CobraSoze]

from axle backs alone?

Cat-back

 

[stkjock]

Cat-back

If it's a three inch system then it's possible.

 

[kent1]

If you have upper or lowered pulley then gains will climb with high flow cats and high flow mufflers ( I used SVT1's). Great sound and alot better than stock.

 

[BigDan]

My vote is LT's and H pipe with stock mufflers but if you have to then make sure it fits 2011's 2.75" tubing and 4" factory tips.