3.3TT New STILLEN Intake and Cat-Back Exhaust Coming Soon

[bumble bee]

Nydito, Alot I know that. Fill us in on the intake.

 

[STILLEN]

I'm working on getting the pics as we speak. I'll post on Monday when I have them. Until then, have a great weekend everyone!

 

[SoCalPearl]

Any news on the exhaust?

 

[robz32]

Wow, good eye dude.

Yeah, and it's a pretty big gap too. See photo below.

• Dyno tested with and without enclosures: no horsepower drop with enclosures installed, enclosures smoke tested to ensure proper utilization of airflow from OE intake ducts

Considering the gap shown in the photo above and the fact that the Stinger intake ducts are not passive (not sure if that's the right term), meaning that air does not flow into the intake when the car is moving, since it's not in a direct path of air flow from the front grill (like on the G37's and 370 Z's), I dont see how this intake will take advantge of the factory ducts, as the filters will need to be completely sealed and the boxes need to be directly attached to the factory tubes seen in the engine bay (like the OEM intake boxes) so that air is directly sucked in through the ducts.

As a matter of fact the factory ducts on the Stinger are located away from the grill, the sit below the radiator air guide and right above the radiator air duct. Completely away from any moving cold air in the front going into the engine bay. See photo below (Don't know why KIA designed it that way though)

 

[Jonathan]

The test person that has it tells me it’s fully closed box and they had K&N before.

Yep, I was told the same yesterday, now its partial. *shrug*

 

[Never thought]

With the 10% via Khar, I decided to take the plunge. Can’t wait until I get it in 2 weeks!

 

[Nice Guy]

The big gap is there because it's missing the oem cover on the sides of the filters like the white one on there site... sorry cant post pics yet.

 

[Kamauxx]

Yeah, and it's a pretty big gap too. See photo below.

The gap is so large because the sides of the radiator shroud aren't installed.

But I agree about the ducts like. I'm really interested to see how the Stillen boxes use them since both Stillen and Khar have said they are in fact used to bring fresh air in. I'm still a bit skeptical since I can't see them in the pics of the installed intake and the the pics of the intake parts don't look to have any cutouts for the ducts to pipe into.

 

[Volvowith18psi]

So I was looking at my JT intakes earlier, and was going to put the boxes around the filters that it came with finally... then it hit me....

The turbos need to be blocked from the filter. The sides and rear of the filter in the KIA are the most critical sides that need blocking. Blocking the top and front is pointless imo.

The top area can just use a simple peice of weatherstrip and compresses agaisnt the hood. Easy. heres a mock up of the stillen picture.

If they can achieve a complete seal of the area and locations marked in red, I will def. try it out.

 

[Never thought]

The gap is so large because the sides of the radiator shroud aren't installed.

But I agree about the ducts like. I'm really interested to see how the Stillen boxes use them since both Stillen and Khar have said they are in fact used to bring fresh air in. I'm still a bit skeptical since I can't see them in the pics of the installed intake and the the pics of the intake parts don't look to have any cutouts for the ducts to pipe into.

The intake wouldn’t be an intake of it didn’t use the ducts. I am no performance parts manufacturer, and I know the intakes need to get air from the ducts. Stillen has a very good rep and has been around a long time, they know how to make intakes, I have no doubt it uses the ducts. But I’ll let you know in 2 weeks. Ha!

 

[Never thought]

So I was looking at my JT intakes earlier, and was going to put the boxes around the filters that it came with finally... then it hit me....

The turbos need to be blocked from the filter. The sides and rear of the filter in the KIA are the most critical sides that need blocking. Blocking the top and front is pointless imo.

The top area can just use a simple peice of weatherstrip and compresses agaisnt the hood. Easy. heres a mock up of the stillen picture.

If they can achieve a complete seal of the area and locations marked in red, I will def. try it out.View attachment 10934

That part is sealed. My understanding is that the only opening is the one you see on the top near the side of the car.

 

[Kamauxx]

So I was looking at my JT intakes earlier, and was going to put the boxes around the filters that it came with finally... then it hit me....

The turbos need to be blocked from the filter. The sides and rear of the filter in the KIA are the most critical sides that need blocking. Blocking the top and front is pointless imo.

The top area can just use a simple peice of weatherstrip and compresses agaisnt the hood. Easy. heres a mock up of the stillen picture.

If they can achieve a complete seal of the area and locations marked in red, I will def. try it out.View attachment 10934

Great! I'll give you $550 for your JT intake.

 

[Never thought]

I gotta say, $400 for this intake through Khar is a no brainer.

 

[Mr Skillet]

The factory ducts are well designed. G37/350z's are na motors with a relatively low vacuum at the intake. Ram air type snorkels help push more air into the motor at speed, downside is more dirt on the filter and potentially risk of water if you drive in very wet areas. Kia Factory intake snorkels suck air directly from the cool incoming air that passes just below the top radiator shroud cover. Seeing the shroud design behind the bumper cover, Im quite impressed with the factory ducting around the airflow for the radiator, intercooler and through the engine bay. (still wish they left off the fake hood scoop or made them functional.)

That being said, there will be flow from the snokles as long as the car is moving. The cut out should also be drawing air from cool airflow going through the engine bay when the car is moving, but no way to confirm until someone installs this and or we get some more detailed pictures.

 

[Tonkabob]

Seems the Stillen intake needs this JT modification. If the box was fully sealed it should act like a stock airbox with a high flow filter. I suspect it does pull extra air from the gaps. I also trust their dynos, the 343 hp stock on a dyno jet is spot on. I'm very suspect of other vendors that show 365 hp stock and take credit for the 20hp under rating.

 

[bumble bee]

Air intake is sweet ☆

 

[Kamauxx]

Seems the Stillen intake needs this JT modification. If the box was fully sealed it should act like a stock airbox with a high flow filter. I suspect it does pull extra air from the gaps. I also trust their dynos, the 343 hp stock on a dyno jet is spot on. I'm very suspect of other vendors that show 365 hp stock and take credit for the 20hp under rating.
View attachment 10944

Honestly I'm hoping for the best. If Stillen can show a pic of their intake's box with a duct connecting to the stock location I'm going to buy this one.

If their wording about the fresh air duct ("the stock bumper intake ducts guide air DIRECTLY into each air filter enclosures") was just a salesman's play on words I'm going to go with JT. Stillen's words seem pretty definitive, though.

We shall see...

 

[Terry@BMS]

The basic problem with intake design is as you try to seal off the filter from "hot air" you inevitably end up increasing the flow restriction of the intake system reducing performance. The best functioning systems duct air from the front as much as possible, resist radiant engine bay heat, and allow the turbo to suck in as much air as it needs with minimal restriction. The higher the power levels the more power is lost due to turbo inlet restrictions.

Also anyone who thinks they are going to gain 15-20whp from an intake on this platform on stock tuning is probably going to be very disappointed, in my opinion. We'll post some dyno comparison runs, and 1/4 mile runs, of our intake design and maybe a few competitors, in due time.

 

[Nice Guy]

•The oem airbox uses the factory air ducts that become a restriction/ bottleneck when more volume of air is needed, you can remove the snorkel to make the airflow more efficient or make the air ducts bigger going into oem airbox and/or oem airbox mod that's on the internet with a drop in filter and be done with it... that's how you do it on a budget, your limit is the surface area of the drop in filter. Plus its quite.

• Diy cone filters mod, cone filters have more surface area for more volume of air to be used it still uses oem plastic piping. It still uses oem air duct but sucks in more hot air from engine bay. Great budget mod sounds loud, great at night and cold days, if made without heat shield performance goes down on hot days or track days.

• Aftermarket intakes usally used larger intake piping and cone filters, so far there is no completely sealed intake on the market like the oem airbox for the stinger and I doubt they will make one. Aftermarket intakes do there best to block out radiant heat from the engine bay but still sucks in some hot air from the sides or bottom even if used with the oem air duct. You will also have to consider the materials used to make the intake and components, my preference would be with the least amount of metals that will retain heat. And I will remove the oem snorkel like the JT intake but without the bracket ...

It's all about preference, form over function , function over form, or form and function. Its just an intake, it all depends how much you want to spend(if your not diy friendly) for a small difference in HP on different aftermarket intakes companies.
Me personally I will focus more on the intercooler and full exhaust then worry about some hot air coming in through small openings around the intake. If you were to go big on the turbos would that be a concern?

 

[OliverNuther]

Good summary.