2011 sho performance

[mike beck]

My 2011 sho has the performance package and I want to increase hp. I’m planning on changing intake and exhaust but I’m not sure about how the exhaust will sound. Are there different choices in this area? Also can a chip help? The car is limited to 139 mph but could easily do more. I’m not looking for more speed just acceleration

 

[SHOdded]

A tuner will be your first and best investment.

 

[brucelinc]

Intake and exhaust is for sound. A tune is for acceleration.

 

[mike beck]

Intake and exhaust is for sound. A tune is for acceleration.

I see you can buy tuner, intake, pregapped plugs and thermostat in one package. You think it’s not needed or could it help?

 

[brucelinc]

With your 2011, you do need SP534 plugs gapped at .030 when you get the tune. Many people recommend the cooler thermostat. I had one in my MKS because I took it to the drag strip. The stock airbox with a high flow filter like K & N will perform as well as an aftermarket intake but will not have the sound.

 

[mike beck]

Got it. Thanks. I will get the entire kit. I’ve read the cai helps with the drone noise

 

[limited02]

Just to clarify for the OP, downpipes are about the only thing worth changing on the exhaust for more power.

 

[SHOdded]

If brave enough to install cutouts, that is another option