Will these upgrades work with an LMS tune?

Discussion in 'Generation 4 - Performance Upgrades' started by marius883, May 18, 2017.

  1. marius883

    marius883 SHO Member

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    So currently I'm running the stage 4 plus tune in my 10' SHO. I'm looking to get a little more out of it, and people are saying that the 4+x is noticeably faster. I want some more turbo sound, and I head the K&N is the way to go for that. This is my shopping list for now, are all these items compatible with an updated tune from LMS?
     

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  2. StealBlueSho

    StealBlueSho SHO Member

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    I would only get the K&N if you want the sound... otherwise from what I have read it heat soaks something awful... a drop in K&N filter has proven to be almost as effective as a CAI...

    The 3BAR is cheaper on rock auto USUALLY by about half...
     
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  3. JasonoftheRugar

    JasonoftheRugar SHO Member

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    Yes, 3 bar from rock auto. I'm using the K&N, but the pipe is wrapped in DEI titanium exhaust wrap. AIT's are only 5 Deg higher than ambient using the torque app.
     
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  4. mrhighcaliber

    mrhighcaliber SHO Member

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    To answer your question, all of this items will work great with the 4+x lms tune. Nothing keeps the Iat down like the stock intake tho. But that k&n gets the top spot for intake/turbo roar. A set of catless downpipes (if your state allows) helps with turbo sounds as well.

    Sent from my Nexus 6 using Tapatalk
     
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  5. SilverSH0

    SilverSH0 SHO Member

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    It would probably be worth checking with LMS to see if they support a CAI that's not from them.
     
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  6. ridered74

    ridered74 SHO Member

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    The 3 bar map should be the only thing that makes a difference for the tune. I've swapped my CAI back and forth a few times with the stock airbox and never switched my tune. I didn't notice any major difference between 4+ and 4x+, but I did notice a difference between 2 bar and 3 bar.
     
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  7. marius883

    marius883 SHO Member

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    So when you guys say heat soak, does that mean my car will overheat? Sorry, I don't know that much :scratch:
    Also, is the colder thermostat necessary in order to change to a 3 bar sensor?
     
  8. mrhighcaliber

    mrhighcaliber SHO Member

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    Nope, just means that the intake tube itself will warm up from the heat under hood. That will just cause your intake temps to be a bit higher while your vehicle isnt moving. Once u start moving your underhood temps will drop and your engine will pull air thru the intake, cooling the intake pipes.

    Sent from my Nexus 6 using Tapatalk
     
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  9. marius883

    marius883 SHO Member

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    Great explanation, thanks! So I guess if sound is what I'm looking for, I'll be going with the k&n!
     
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  10. Livernois Motorsports

    Livernois Motorsports SHOForumSponsor Sponsoring Vendor

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    We will tune for it, If you like the noise the K&N is a good way to go, but we've seen the same if not better results by just utilizing the factory airbox.
     
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  11. marius883

    marius883 SHO Member

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    Perfect! Is the colder thermostat required in order to run the 3bar tune? I live in FL, so will I benefit from the 170 thermostat?
     

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