2011 sho performance

Discussion in 'Generation 4 - Performance Upgrades' started by mike beck, Jul 9, 2018.

  1. mike beck

    mike beck New Member

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    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
     
  2. SHOdded

    SHOdded SHO Member

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    A tuner will be your first and best investment.
     
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  3. brucelinc

    brucelinc SHO Member

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    Intake and exhaust is for sound. A tune is for acceleration.
     
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  4. mike beck

    mike beck New Member

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

    brucelinc SHO Member

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    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.
     
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  6. mike beck

    mike beck New Member

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    Got it. Thanks. I will get the entire kit. I’ve read the cai helps with the drone noise
     
  7. limited02

    limited02 SHO Member

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

    SHOdded SHO Member

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    If brave enough to install cutouts, that is another option ;)
     

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