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K&N Typhoon Intake Review - now with added Pics and Video!

Discussion in 'Engine, Drivetrain, and Exhaust Discussion' started by ZyroXZ2, Jul 25, 2018.

  1. ZyroXZ2

    ZyroXZ2 United States Active Member

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    I’ve now had the K&N Typhoon intake installed for a couple hundred miles, and not all is smooth sailing. It seems that the intake has caused ISG (Idle Stop and Go) (Idle Stop and Go) to stop working***. While for some of you this is great, I do a lot of driving and this feature actually adds up to being beneficial for me. I have figured out the particular problem, but have not created a solution for it quite yet. I am surprised no one else has reported it, but it could very well be one of those “mileage may vary” luck-of-the-draw situations. Moving on, though…

    ***UPDATE: I figured out what caused ISG (Idle Stop and Go) to stop working and applied a fix. The good news is: I now know how to disable ISG (Idle Stop and Go) relatively easily! It also seems K&N was aware of this because I had to use a fitting that was not listed anywhere in the installation instructions but was included in the box. I also had to get a different hose to fit said fitting, but I'll provide a separate thread on ISG (Idle Stop and Go) disabling caused by the K&N intake for those interested in turning it off.

    LOOKS:

    It looks good, but a little strange. If you’re like me, you’re generally used to your intakes facing towards or angling towards the front of the car. Being perfectly sideways seems a little bit if a fashion no-no for an aftermarket intake, but alas you also get used to seeing it that way since it’s “different”. The piping itself has a sparkly metallic paint that is inherently a little reflective due to the metal flecks in it. The boxes themselves are actually somewhat poorly shaped and don’t really “seal” in anywhere. The fitment isn’t perfect, either, so you might see that your piping doesn’t quite perfectly “center” within the couplers, creating bulges favoring one direction over another. This is pretty common for K&N intakes, though, as I’ve installed some before and this tends to happen with the type of coupler they use. Fortunately, I’ve modified the box a bit to improve its efficiency. I have wrapped the entire box in reflective insulation and extended the weather stripping upward to reduce the gap between the intake and the hood. The hood sits about 3” above the intake, though, so you’ll never really seal it with the hood unless you create an accordion style of weather stripping extending well above the intake and strut tower brace. I’ll be posting pics of this soon, though fair warning: it’s a bit ghetto-fabulous. This sort of starts to segue into performance, so more on that later.

    UPDATE - PICS GALORE ADDED! See notes above each pic for information if/when applicable.

    Insulation Wrap (Bottom)

    [​IMG]

    Insulation Wrap (Complete)

    [​IMG]

    Metallic Fleck Intake Tubing Paint

    [​IMG]

    Intakes Installed

    [​IMG]

    Extended Weatherstripping - You'll notice some "indentation" on the weather stripping. This is where it meets the hood's bulge, so this DOES partially seal with the hood after all!

    [​IMG]

    Filling Heatshield Gaps - I placed as much weather stripping around the area to fill in gaps where hot air definitely would flow in.

    [​IMG]

    Pic of Insulation Installed - These DO make a MASSIVE different in temperatures. When the car is sitting a long time and everything heat soaks, that can't be helped. However, even in 90+ degree weather driving 50+ miles, I can open my hood and touch the inside of the heatshield and it is ambient temperature while the other side where the insulation is has massive heat waves hitting it and the insulation itself is warmer (but obviously not hot or it wouldn't be doing it's job).

    [​IMG]

    Big Gaps On Bottom - These gaps CAN be filled with stuff if one so-desires, but the weird shape means coming up with something weird and jenky (jenkier?) looking...

    [​IMG]

    Backside Insulation

    [​IMG]

    Strut Tower Brace Weatherstrip - This looks by far the stupidest, but it does help close the gap...

    [​IMG]

    Strut Tower Brace Weatherstrip - So I took my stupidest idea and did it on the other side, too...

    [​IMG]

    SOUND:

    HOLY TURBO NOISES BATMAN. If you wanted to sound like a 600+HP car, this is the intake for you. At just 1/3 throttle, the car begins to sound like it wants to suck in small children and cats. At half throttle, every car around you not blasting music will hear your turbos. At full throttle, the pitch changes and it turns into that high-pitched turbo hissing sound designed to snatch up said small children and cats. When you let off the gas entirely with a rapid “oh sh—a cop” foot lift, it only serves to raise your hand to the cop as you hear an incredibly loud BOV-gasm, and since you have two of those, it’s VERY loud. If you bought the Magnaflow exhaust to keep your car subtler like I did, putting on this intake completely and utterly ruins your entire plan. It also makes the car hilariously louder from the front than the back. Are you a car guy that wants everyone to know? This intake will make your wildest dreams come true. Did you just want more power but no one to know? Whoops for you.

    VIDEO below for your aural pleasure! :geek:



    POWER:

    Immediately from pulling out of the garage, light throttle response below 2K RPM is noticeably improved. Basically, non-turbo boosted engine response is a lot better. But believe it or not, it’s harder to tell at WOT. The car seemed to pull about the same, but then out of nowhere on one pull, it yanked me harder than it ever has before! This could all be down to ECU adjustment and the fact that it’s summer heat, but to say I immediately felt something like I did with the exhaust would be a lie. However, this was all tested right after installation, and I have only had one or two WOT runs since then in the dead heat of 90+ degree weather instead of nighttime when it’s usually cooler and I’ve finished installation. I’ll report back again when I get another chance to make the cops look at me from the front.

    As for my modifications, there is a significant difference in temps behind and in front of the insulation. Sure, the turbo compresses and heats up the air, but if I’m even dropping 1 or 2 degrees F, it’s a win for me. For the weather stripping, though: skip it. My box is what most would consider relatively well sealed since I went around plugging all the tinier holes, but if you want true 100% sealing, it will take you much, much more effort than it might be worth.

    I’ll be adding pics and videos soon. I do work two jobs, so it gets hard to just get everything I need for show and tell all the time, but I’m a man of my word: you will all get your fill of turbo noises and pics of my ghetto-fab modifications! :D

    REVIEW (new):

    After nearly 300 miles on the K&N Typhoon intake system, I have generally positive things to say. First, after my modifications to it, I essentially have all of the benefits of the intake with nearly none of the heat soak problems. The car remains responsive in even the hottest weather unless it sits in a parking lot for 30 minutes in which everything heat soaks anyway because there is no air flow and the heat will seep into everything.

    In terms of power, it's hard to determine the gains from the good ol' butt dyno. It seems that if one wishes to get more power out of the Stinger GT, it is smarter to look first at the exhaust system and the tuning. This bodes well for the stock intake design, and I reckon many of you can simply get away with never installing an intake and barely notice the difference in power. This may partially be attributed to the filters being rather small: their surface area doesn't seem to add a whole lot. But then again you'd miss the best part...

    This intake simply sounds like nothing I would have ever expected. There's no denying that you will scare Burger-King-parking-lot-burnout-donut-speed-racer Joe. He won't race you, because you toss some 4k revs and he's foolish enough to think that whooshing sound is the sound of 600HP. You will love the WOT sound because you think that there weren't any tiny animals on the road in front of you, but they're actually all trapped in your intake. You'll be scared to go half throttle, because that's when the cops look at you and think about all the possible fix-it tickets they could be writing you to make their day interesting. You will love the sound of this intake, period.
    The installation itself is relatively straightforward. As mentioned above, keep an eye on that fitting because it affects your ISG (Idle Stop and Go) (and your gas mileage), and also in a post, the driver's side intake box DOES touch some AC lines. If you insulate your box, you'll have less worry as the AC lines are ALSO insulated, so two padded things rubbing each other shouldn't cause any immediate concern. I will, of course, keep an eye on it regularly. Otherwise, everything is as expected from the instruction guide.

    My final take on this is that you will need an intake eventually when/if you are seeking absolutely all the power you can get. If you pick this intake, you won't be disappointed by the sound at all whatsoever, it looks different if you're into being unique, but you may not really notice gains until other mods are making better use of it. If you're looking at your first mod, this one shouldn't be it: go for your exhaust first. ;)
     
    Last edited by a moderator: Aug 7, 2018
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  2. Kamauxx

    Kamauxx United States 1000 Posts Club!

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    Great review!
     
  3. Jonathan

    Jonathan United States Active Member

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    Stops the ISG (Idle Stop and Go) from working? I think I have a new favorite for my CAI!!! :D
     
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  4. OliverNuther

    OliverNuther Australia Active Member

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    Great write up. This is my first turbo car and I don’t know a lot about them so I’ve been hoovering up info on this forum like a sponge. I’ve been thinking about a CAI and this was very helpful. Thanks for taking the time. Looking forward to the pics and vids.
     
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  5. NobleCrow

    NobleCrow United States Member

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    looking forward to the videos
     
  6. Dochidalgo

    Dochidalgo Mexico Active Member

    I have understood that the CAI systems improve engine performance at high RPMs, not at the low RPMs band......hope someone could confirm this......
     
  7. Mr Skillet

    Mr Skillet United States Active Member

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    In most na cars, an intake is typically less restrictive than the factory filter. This is where you will get the "feel" that there is better throttle response, particularly at part throttle low load situations. Depending on how restrictive the factory filter was vs any after market intake, you might also see a difference in dyno charts at WOT. Of course, there are many factors that determine this, CAI/SHORT RAM, ambient temp, engine design, Na/FI, etc
     
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  8. Paul @ K8 Stinger Store

    Paul @ K8 Stinger Store United States Stinger Enthusiast Authorized Vendor

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    Great write up! It's good to get real feedback from owners, especially seasoned owners that have been using the intake for more than just a few miles :)

    That's typically true, most feel the affected areas to be improved throttle response and better HP in the higher RPM range
     
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  9. ZyroXZ2

    ZyroXZ2 United States Active Member

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    UPDATE: I figured out what caused ISG (Idle Stop and Go) to stop working and applied a fix. The good news is: I now know how to disable ISG (Idle Stop and Go) relatively easily! It also seems K&N was aware of this because I had to use a fitting that was not listed anywhere in the installation instructions but was included in the box. I also had to get a different hose to fit said fitting, but I'll provide a separate thread on ISG (Idle Stop and Go) disabling caused by the K&N intake for those interested in turning it off.
     
    • Like Like x 1
  10. Ucinn

    Ucinn United States Stinger Enthusiast

    I believe if you turn on the rear defroster it will also disable the ISG (Idle Stop and Go)
     
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  11. ZyroXZ2

    ZyroXZ2 United States Active Member

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    I wouldn't want to waste the electricity heating up wires on my rear window for nothing, to be honest...

    Also, this forum's automatic ISG (Idle Stop and Go) acronym parentheses addition is kinda funny and neat at the same time... Now ya'll just need to be comical and add it for WTF and LOL :rofl:
     
  12. Mr Skillet

    Mr Skillet United States Active Member

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    VSC...sorry trying it out...
     
  13. Kazz

    Kazz United States 1000 Posts Club!

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    Well done, thanks! I've heard some complain about rubbing on hoses or such? Any ideas what they're talking about?
     
  14. Soca Boy

    Soca Boy Canada Stinger Enthusiast

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    Good review, I installed mine last week Friday and love it so far. My ISG (Idle Stop and Go) still works, I agree with on most of your points. Would like to see your modified box, my next upgrade is the exhaust.
     

    Attached Files:

  15. ZyroXZ2

    ZyroXZ2 United States Active Member

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    Yes, a couple of AC lines' insulation can touch/lean against the driver's side heat shield. Fortunately, thanks to the insulation I added, it's a relatively non-issue because of the padding-on-padding action going on there. I DO intend to check it regularly, though, as I can't tell how much movement may actually be occurring there, and it rubs through my insulation, then that'll be a long-term "update".

    Yea, if you used the smaller fitting, it works, though for me, that smaller fitting was too small for the existing hose as it had been stretched by the factory fitting. I'm about to do that write up in a separate thread right now, so if you're an ISG (Idle Stop and Go) hater, you actually have the means to disable it, lol
     
  16. ZyroXZ2

    ZyroXZ2 United States Active Member

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    SOUND:

    UPDATE - Video added below for your aural pleasure! :geek:

     
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  17. Mr Skillet

    Mr Skillet United States Active Member

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    Awesome, thanks for mounting mic in two of the most useful locations. That noise is ridiculous, sounds like it's sucking in small children and furry animals at wot :)
     
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  18. ZyroXZ2

    ZyroXZ2 United States Active Member

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    What's nuts is that the actual sound of the engine ends up drowning out the turbos. I didn't see that part coming, so it's a good thing the engine sounds decent for a 3.3L, lol

    Also, can a mod edit my main post to add the video update to the "Sound" section? I wish I could indefinitely edit the original post...
     
  19. Kamauxx

    Kamauxx United States 1000 Posts Club!

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    Nice! Sounds like a big ole turbo diesel under there!
     
  20. Mr Skillet

    Mr Skillet United States Active Member

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    Its a great sounding v6! Doesn't hurt that it pulls like a legitimate v8 once the turbos hit full steam. I'd love to see what a EVC exhaust like the Jun Bl sounds like on the open road :)
     
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