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Hello,

Does anyone have a Kong X Port S/C on an untuned engine? Kong himself is the only one I know of. I currently just have a CAI, Soler TB, and ZR1 lid. I'm looking to sneak in as many stock-looking tune free mods as I can. I thought I was done but I read a recent FB post about Kong having his X port on a stock, untuned V3. Does anyone else? Thoughts?

Thanks
 

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I agree best to have tuned, but stock tune is overly rich and is why they say don't need a tune I'd imagine. Also, if you're not seeing 11.5ish lbs of boost depending on where you live, the factory boost limit might be ok. Again, I still think it's always best to retune with any airflow changes.
 

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I actually asked greg about this the other day on FB, but he also mentioned he was running a larger 3.0 inch upper pulley vs the factory 2.5 inch just fyi, so that will decrease boost.

As others have stated, you can only make so much boost before hitting the factory tunes limits.

You could do it, but probably wouldnt see any benefit without a tune because it will likely increase boost and hit that limiter
 

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I actually asked greg about this the other day on FB, but he also mentioned he was running a larger 3.0 inch upper pulley vs the factory 2.5 inch just fyi, so that will decrease boost.

As others have stated, you can only make so much boost before hitting the factory tunes limits.

You could do it, but probably wouldnt see any benefit without a tune because it will likely increase boost and hit that limiter
Dropping .5 on the pulley will not result in gains from porting. Whats the point?
 

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2011 CTS-V Coupe with a blue wrap. Cam, smaller pulley, larger injectors, methanol injection.
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I just installed a kong ported blower on mine today along with a 2.38 pulley. I do plan on having it tuned asap though. I've already talked with my tuner. I also noticed while I had the lid off that I didn't have a reinforced brick like I paid to have. I was charged with one and still have the stock one on my stock lid.
 

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2018 CTS-V Black Raven Carbon Package, 2017 Escalade ESV
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Modify anything for more air,now you're savior is the headers. Don't blow the car up, if you're spending that much, do a tune and be done with it. good luck! LET HER BREATHE!
 
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